Acoustic Lenses 820

From: Aiptas Ouroborus 113

This piece of gear is designed to both protect and enhance the creature’s most vital sensory organs: its massive ears. The device is a pair of large, concave dishes fashioned from thinly shaved, acoustically resonant crystal, each held in a lightweight but durable frame of dark iron. This framework is mounted to the creature’s foremost armored segment, positioning the crystal dishes directly in front of its ears like giant sound-gathering funnels, without making physical contact with the delicate membranes. The Lenses serve two critical functions. First, they act as effective physical shields, deflecting falling rubble or warding off attacks that might target the ears. Second, and more importantly, they are magical amplifiers for sound, collecting and focusing even the faintest vibrations from the environment into the creature’s ears. This dramatically increases the range and fidelity of its hearing, allowing it to perceive sounds that would otherwise be lost to distance or obstruction.

Lore These lenses are not merely protective gear, but a masterwork sensory instrument from a lost civilization. They were originally crafted by the Deep-Singers, a race of eyeless, subterranean people who perceived their world entirely through sound. The lenses were standard equipment for their elite Echo-Sentinels, who guarded the vast, silent cities of the under-dark. The crystal used to fashion the dishes, known as “Resonance Heart,” was harvested from a unique crystalline formation that grew only in the deepest, most acoustically perfect caverns of their domain. This crystal was naturally attuned to the vibrations of the earth and the echoes of their world. For the Sentinels, the lenses allowed them to hear the approach of burrowing leviathans from miles away and to protect their hyper-sensitive ears from the sonic shrieks of their foes.

This specific pair was salvaged from the remains of a long-dead Echo-Sentinel by a surface-dwelling adventurer. The adventurer, recognizing their value, mounted them in a crude but durable iron frame to wear over his own ears. Centuries later, this adventurer met his end, petrified by a magical gas leak in a deep cavern. The creature Kastor eventually found this fossilized figure and, over the course of decades, consumed the magically-rich remains. In this slow, geological process, the iron frame of the lenses, along with the crystals themselves, became permanently fused to Kastor’s foremost armored segment via mineral deposits and its own secretions, serendipitously positioning the sound-gathering dishes perfectly in front of its own massive ears.

Slot: Head (External Sensory Apparatus)

Requirements:

• Must be physically and permanently mounted to the user’s head or carapace.
• The user must possess natural auditory organs to receive the amplified sounds.
• To unlock the full suite of passive and activatable magics, the user must already possess a naturally exceptional or magically enhanced sense of hearing.

Tier One Stats:

• Passively provides +5 Armor to the Head location against physical attacks.
• Grants a massive bonus to all Perception checks based on hearing.
• The user is immune to being deafened by non-magical sounds.

Skills Gained:

• Proficiency (Acoustic Mapping): The user becomes so adept at interpreting the amplified sounds that they can construct a perfect, three-dimensional mental map of their surroundings within a moderate range, effectively granting them a form of “sight” through sound.
• Knowledge (Seismic Interpretation): The wearer becomes attuned to the vibrations of the earth itself, gaining the ability to interpret seismic tremors to sense approaching armies, predict cavern collapses, or detect the movement of massive subterranean creatures.

Passive Magics:

• Acoustic Amplification: The lenses magically collect and focus sound waves, tripling the user’s normal hearing range and allowing them to perceive sounds in the ultrasonic and infrasonic ranges, far beyond the capabilities of most creatures.
• Clarity Filter: The Resonance Heart crystal automatically filters out meaningless background noise—the drone of wind, the patter of rain, the dull hum of machinery—allowing the user to isolate and focus on specific, important sounds, such as a single conversation in a crowded room or a single footstep in a storm.
• Sound Dampening: If the lenses detect an incoming sound wave that exceeds a dangerous decibel level (such as an explosion or a thunder-cleric’s shout), they instantly create a counter-frequency that dampens the sound to a loud but physically harmless level, protecting the user’s auditory organs.

Activatable Magics:

• Sonic Focus: By taking a moment to concentrate, the user can mentally “aim” the lenses at a specific point within their extended hearing range. This allows them to focus their hearing with pinpoint accuracy, making it possible to eavesdrop on a whispered conversation from across a valley or to hear the subtle mechanical clicks of a trap mechanism through a solid stone wall.
• Resonance Analysis: By making physical contact with an object and activating the lenses, the user can send a sub-audible vibration from their own body through the object. The lenses then analyze the returning echo, providing a detailed, intuitive understanding of the object’s internal structure. This can reveal hidden compartments, structural weaknesses, the presence of liquids, or the internal anatomy of another creature.
• Discordant Pulse: A risky, last-ditch ability. By focusing the lenses inward and amplifying the sound of their own body (heartbeat, movement), the user can project this sound outward as a short-range, focused blast of disorienting noise. This “sonic flashbang” does no damage but can deafen and stun a single target for a few crucial moments, allowing for an escape. Using this ability is jarring and leaves the user disoriented for a short time afterward.

Tags: Magical, Sensory, Head Slot, Tier One, Ancient, Protective, Auditory, Crystal, Amplifier, Defensive, Artifact, Echolocation, Filter, Concentration, Subterranean-Origin, Immunity, Utility, Tool

The Acoustic Lenses 820, as a unique sensory artifact from a lost civilization, would not be found in any standard market. Furthermore, its current state—permanently fused to a living, 900-pound armored creature—makes a simple transaction impossible. The commerce surrounding this item would be indirect, dangerous, and centered on the acquisition of the creature itself or the rights to its salvage.

1. The Frontier Exploration & Hunting Guild

• Example Establishment: “The Quarry Union, Outpost 12,” a heavily fortified guild hall located on the edge of the Whispering Mountains, a range known for its vast, unexplored cave systems and forgotten ruins. This is not a shop for finished goods, but a marketplace for opportunity and information. Its members are hardened monster hunters, ruin-delvers, and explorers.
• Method of Sale: The Lenses themselves are not on sale. What is for sale is the information leading to them. A grizzled prospector who barely survived an encounter with Kastor might return to the outpost with detailed notes: the location of the creature’s lair, its defensive behaviors, and an acoustic sketch of the Lenses themselves. This information is then verified by the guild’s seers and sold as a “Salvage Claim.” The transaction is a formal, guild-officiated contract granting the buyer the exclusive right to hunt the specified creature and claim the artifact. This is a high-risk, high-reward venture sold to well-equipped and wealthy adventuring companies.
• Cost: The price is for the verified intelligence and the legal right to the claim, enforced by the guild’s formidable reputation. Estimated Cost: 30,000 Gold Sovereigns. This price does not include the immense secondary costs of mounting a full-scale expedition, hiring specialists to fight or subdue the creature, and then contracting a master artificer to perform the dangerous task of extracting the Lenses from the beast’s carapace without shattering the delicate crystals.

2. The Master Artificer’s Laboratory

• Example Establishment: “Von Hess Sonic Attunements & Prosthetics,” a magically shielded, sound-proofed laboratory and showroom in a wealthy, steam-powered industrial city. The master artificer, Von Hess, is obsessed with sensory augmentation and the replication of ancient technologies.
• Method of Sale: This establishment would be a primary buyer of the artifact, not a seller. They would pay a king’s ransom for the intact Lenses to study, reverse-engineer, and unlock the secrets of Resonance Heart crystal. A party that successfully salvaged the Lenses would bring them here for the highest payout. The transaction would be a tense, meticulous negotiation. Von Hess would use magical and sonic tools to assess the crystal’s purity, the integrity of the frame, and the lingering magical enchantments. If the party managed to create a replica based on their studies, that would be for sale.
• Cost:
  • Selling the Original: Von Hess would offer a fortune for the authentic, Tier One artifact. Estimated Payout: 400,000 Gold Sovereigns for the undamaged Lenses. If damaged, the price would drop significantly based on the state of the core crystals.
  • Buying a Replica: A “Von Hess Echo-Enhancer,” the best modern replica available, would be sold to wealthy clients. It would mimic the basic sound amplification but would lack the magical filtering and analysis capabilities of the original. Estimated Cost: 120,000 Gold Sovereigns.

3. The Subterranean Cultural Exchange

• Example Establishment: “The Deep Archives of the Singing City,” a reclusive, subterranean metropolis inhabited by the descendants of the Deep-Singers or a related species of eyeless cavern-dwellers. This is not a shop, but a cultural and religious center.
• Method of Sale: To these people, the Acoustic Lenses are a sacred relic, a piece of their heritage. They would never be sold for money, which they consider a frivolous surface-dweller’s concept. The transfer of the Lenses would be a matter of immense cultural and political weight. If an outsider somehow possessed them, they would be viewed as a grave robber. To acquire the Lenses from the Deep-Dwellers, one would have to earn them through a great deed or a worthy exchange. This would involve lengthy councils with community elders and proving one’s worth.
• Cost: There is no monetary cost. The price is paid in service, honor, or knowledge. Estimated Cost: A formal “Sound-Bargain.” The Deep-Dwellers might trade the Lenses for: the return of a different, equally important lost artifact; the complete and accurate mapping of a new, unexplored cavern system vital to their expansion; the elimination of a grave threat to their city, such as a colony of mind-flaying psychic fungi; or teaching them a new form of magic or technology they cannot develop themselves. Acquiring the Lenses here is the culmination of a long and difficult quest centered on earning the trust of an ancient and secretive people.

The Acoustic Lenses 820 are not a weapon of overt offense, but a sensory tool of unparalleled subtlety. Their use in roleplay is one of finesse, information warfare, and tactical advantage, turning the user from a mere combatant into a master of their acoustic environment.

• Environment 1: A Crowded, Scheming Noble’s Gala — In an environment choked with noise and intrigue, the Lenses provide an almost unfair advantage in social stealth and espionage.
  • Roleplay for Defense:
    • The user’s primary defense is against being overwhelmed by information or caught unawares. “Stepping into the grand ballroom, the user is hit by a tidal wave of sound—a full orchestra, the roar of a hundred conversations, the clinking of a thousand glasses. To a normal person, it is chaos. For the user, they simply take a moment to concentrate. They activate the Clarity Filter passive, and the world seems to go quiet. The meaningless cacophony fades into a soft, distant hum, while specific, important sounds—a stressed word in a nearby conversation, the cocking of a hidden crossbow on a balcony—are plucked from the noise and presented with perfect clarity.”
      When confronted by a suspicious guard captain whose voice is booming in their face, the Sound Dampening passive automatically engages. “The captain’s furious shout, intended to intimidate and disorient, is reduced to a firm but harmless volume. The user remains perfectly composed, able to respond calmly and deflect suspicion, their composure itself a form of defense.”
  • Roleplay for Offense:
    • The offense here is intellectual and preemptive. “The user needs to identify a spy exchanging a secret. Using the Sonic Focus ability, they aim their hearing across the ballroom like a spyglass. They lock onto their target, a duchess in quiet conversation. The sound becomes so clear they can hear the whisper of her silk dress and the soft beat of her heart. They effortlessly overhear the key phrase passed to her contact. Later, when leaving, the user is cornered in an antechamber by two of the duchess’s guards. They have no easy escape. The user focuses on the lead guard and triggers the Discordant Pulse. A silent, focused blast of disorienting sound hits the guard, who stumbles back, clutching his ears in sudden, nauseating vertigo. In that one moment of confusion, the user slips past and disappears into the night.”
• Environment 2: A Silent, Trap-Laden Ruin — In a place where a single misplaced footstep means death, the Lenses become the ultimate tool for hazard detection and navigation.
  • Roleplay for Defense:
    • The user’s defense is to never spring the trap. “The silence of the ancient tomb is absolute. But to the user of the Lenses, the air is full of information. They activate Acoustic Mapping, taking a moment to listen to the echoes of their own breathing. The returning sound waves paint a detailed picture in their mind: the hallway continues, but the floor ten feet ahead sounds thin and unsupported—a pitfall. The stone of the left wall has a different resonance, suggesting it is a disguised, hollow door.”
      They approach a large, sealed chest. “Before touching it, they use Resonance Analysis. Placing a hand on the lid, they send a tiny, sub-audible vibration through it. The echo they receive is complex; it reveals not only the shape of the treasure within, but also the distinct, tell-tale sloshing of liquid and the sharp click of a pressure-sensitive trigger—a poison needle trap.”
  • Roleplay for Offense:
    • Offense is about turning the tables on the tomb’s guardians. “The user hears the faint, dry scrape of bone on stone long before the skeletal guardians round the corner, allowing them to prepare an ambush. In a fight with a large, armored tomb golem, its armor seems impenetrable. The user uses Resonance Analysis again, touching the ground near the golem’s feet. The resulting vibration travels up the golem’s leg, and the echo reveals a hairline fracture inside its knee joint, a critical structural flaw invisible to the eye. The user now knows exactly where to strike to shatter the limb.”
• Environment 3: A Treacherous, Windswept Mountain Pass — While tracking a dangerous beast, the Lenses allow the user to master an environment designed to confuse and mask sound.
  • Roleplay for Defense:
    • The howling wind makes hearing anything impossible for a normal person. “The user activates the Clarity Filter. The deafening roar of the wind across the pass fades away, allowing them to hear what’s underneath: the distant clatter of loose stones kicked by their quarry, a large Manticore. The Seismic Interpretation skill, enhanced by the Lenses, allows them to feel the heavy tread of the beast through the rock itself, confirming its size and direction.”
      The Manticore, sensing it is being followed, lets out a magically potent roar from a nearby cliff. “The Sound Dampening passive activates instantly. The sound wave that should have deafened and paralyzed the user with fear is instead reduced to a loud, but tolerable, snarl. The user is able to dive for cover while another hunter would have been helpless.”
  • Roleplay for Offense:
    • The offense is the conversion of simple tracking into a perfect, inescapable hunt. “Using Sonic Focus, the user tracks the Manticore’s own heartbeat. They know its exact position behind a rock outcropping, even when it is perfectly still and hidden from sight. The user knows the Manticore is about to ambush them. They prepare. The moment the beast leaps from its hiding place, the user triggers the Discordant Pulse. The focused sonic blast hits the Manticore in the face. Its sensitive ears are overwhelmed, its balance destroyed mid-leap. It crashes into the rocks, completely disoriented, giving the user a critical, undeniable opening to attack.”

Perception of Activation:

User’s Perspective

• Sight: There is no direct visual change to the world. However, the intensity of the auditory input is so profound that the user’s visual sense often becomes secondary. Their eyes may unfocus as their brain devotes all of its power to processing the incoming sound, a state of “seeing with the ears.”
• Sound: This is the primary and most overwhelming sensation. When an ability like Sonic Focus is activated, the world’s ambient noise instantly and completely vanishes. The roar of a nearby waterfall, the howling of wind, the chatter of a crowd—all of it is edited out, replaced by a perfect, velvet silence. Then, the target sound is brought forward with impossible fidelity. It is not just “louder;” it is multi-dimensional. The user can hear the whisperer’s heartbeat beneath their words, the rustle of their clothes, the faint sigh of air leaving their lungs. It is the sound of reality stripped down to its most intimate, atomic components.
• Smell: There is no smell associated with the activation itself.
• Touch: A faint, high-frequency vibration can be felt where the iron frame is mounted to the user’s head or carapace. It feels like a purring cat or a finely-tuned machine coming to life. There is also a subtle but distinct feeling of pressure changing deep within the user’s ear canals, as if the air itself has been reshaped.
• Taste: There is no taste associated with the activation.
• Extra-Sensory (Mental Focus): The activation requires a conscious act of will. The sensation is one of gathering one’s thoughts and pushing them outward into the lenses, creating a “tunnel of hearing” between the user and the target. The mind feels sharpened and focused, but also isolated from all other sensory distractions.
• Extra-Sensory (Magical Sense): The user can feel a subtle “drawing” of their own innate magical or mental energy into the crystals. The lenses, normally cool and inert, suddenly feel “alive” and thrum with a quiet, orderly power that resonates with the user’s intent.

Observer’s Perspective

• Sight: The activation is subtle but noticeable to a keen eye. The crystal dishes, normally clear or faintly iridescent, begin to glow with a soft, internal, silvery-blue light. Faint, concentric rings of shimmering energy, like ripples on a pond, may pulse outward from the center of each dish. In low-light conditions, the air around the lenses appears to subtly distort and shimmer, as if warped by heat or vibration.
• Sound: From a very close distance, a faint, high-frequency hum can be heard. It is not loud, but it is pure and piercing, like the sound of a wet finger being run around the rim of a crystal glass. When the Discordant Pulse is used, there is a sharp, localized thump of displaced air, but the damaging sound itself is a focused, directional cone.
• Smell: There is no smell associated with the activation.
• Touch: An observer standing very close might feel a strange, light pressure on their eardrums, as if the atmospheric pressure had suddenly changed. The air near the user feels strangely “vibrant” or “charged.”
• Taste: There is no taste associated with the activation.
• Extra-Sensory (Magical Sense): A magically-attuned observer would perceive a finely-controlled and highly complex enchantment coming to life. Unlike a weapon’s raw evocation, this feels like a precise instrument. They would sense magics of Divination (for the listening abilities) and Abjuration (for the sound-dampening) being woven together with expert precision.
• Extra-Sensory (Seismic Sense): When the Resonance Analysis ability is used, a creature with a connection to the earth may feel the tiny, sub-audible vibration that the user sends through the ground or a wall, perceiving it as a strange, isolated tremor.

Positives

• It provides an unparalleled ability for remote intelligence gathering, eavesdropping, and espionage from a position of relative safety.
• The passive filtering and dampening abilities offer a potent defense against sonic attacks and prevent sensory overload in chaotic environments.
• The analysis functions can reveal hidden dangers, structural weaknesses, or secret mechanisms, making the user an invaluable asset for ruin-delving and infiltration.
• It allows for effective navigation and threat detection in conditions of complete darkness or zero visibility.

Negatives

• The intense focus required for active use can create a form of “auditory tunnel vision,” causing the user to become oblivious to threats outside their narrow cone of attention. A foe approaching from behind may go completely unheard.
• Maintaining concentration, especially for abilities like Sonic Focus, can be mentally taxing and difficult to do during physically strenuous or stressful situations.
• The visual glow of the activated lenses, however faint, can betray the user’s position to an observant enemy, especially in the dark environments where the lenses are most useful.
• Overuse of the active abilities, particularly the Discordant Pulse and Resonance Analysis, can cause magical feedback that results in splitting headaches, severe tinnitus, or magical vertigo for the user.
• The information gained can be overwhelming. Hearing the frantic heartbeats of a dozen creatures at once or the groaning stress of a collapsing ceiling can be psychologically taxing.

Masterwork Schematic: The Resonant Echo-Lenses

This document details the intricate and demanding process required to fabricate a pair of sensory lenses that can replicate the legendary performance of ancient artifacts like the Acoustic Lenses. This is a work of supreme artisanship, demanding mastery over sound, crystal, metal, and magic. Only those with decades of dedicated experience should attempt this, as failure at any stage will result in the catastrophic destruction of priceless materials.

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Materials Needed

• Core Lenses (x2): Two flawless, grapefruit-sized Resonance Heart Crystals. These unique crystals can only be harvested from the deepest, most acoustically perfect “singing caves,” and must be extracted as a matched pair from the same geological formation.
• Frame (3 lbs): Three ingots of meteoric “Silent Iron.” This metal is prized for its unique property of dampening vibrations, and must be alloyed with powdered, magically-silenced stone during the forging process.
• Amplification Matrix (x1): The perfectly preserved larynx of a mature Song-Wyrm. The vocal cords of this creature contain the biological structures necessary for projecting and modulating sound on a magical level.
• Filtering Agent (1 pouch): A pouch of finely milled Dust of Tranquility, a rare alchemical substance made from the petals of the silent Moon Lotus, which only blooms in complete and total silence.
• Power Conduit (x1): The captured Ectoplasmic Echo of a powerful, sound-based spirit such as a Banshee or an ancient Echo-Elemental. The echo must be contained within a magically-attuned crystal phial.

Tools Required

• A Silent Forge and Acoustically-Tuned Anvil: A specialized forge designed to operate with minimal vibration, and an anvil that absorbs the sound of hammer blows rather than reflecting them. Essential for creating the non-resonant frame.
• A Diamond-Edged Gem-Cutter’s Lathe: An extremely precise, high-speed lathe necessary for shaving the Resonance Heart Crystals into their perfect, paper-thin concave forms without shattering them.
• An Aural Harmonizer: A complex arcane device with numerous tuning forks and resonating chambers, used to safely extract the sonic essence from the Ectoplasmic Echo and imbue it into the crystal lenses.
• An Enchanter’s Athanor: A specialized alchemical furnace capable of low, steady heat, used for infusing the Dust of Tranquility into the surface of the crystals.
• A Completely Sound-Proofed Sanctum: An absolute necessity for the final tuning phase, to prevent sensory overload and madness in the crafter.

Skill Requirements

• Grandmastery of Jewelcrafting: The primary physical skill. The lathing of the Resonance Heart Crystals is an act of supreme delicacy where a single miscalculation results in failure.
• Mastery of Sonic Enchanting: A rare specialization of magic focused on weaving enchantments of sound, silence, and vibration.
• Expertise in Metallurgy: Required for the difficult process of forging and shaping the Silent Iron frame.
• Theoretical Knowledge: A comprehensive understanding of “Acoustic Resonance Theory” and the principles of “Sympathetic Magical Vibration” is mandatory.

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Crafting Steps

1. Forging the Silent Frame: The Silent Iron ingots are heated in the Silent Forge. On the Acoustically-Tuned Anvil, the metal is painstakingly worked into the intricate, lightweight frames that will hold the lenses. Each hammer blow must be precise, as the goal is to create a structure that is utterly dead to sound, a perfect vessel of silence to hold the perfect ears. The finished frames are quenched in oil infused with the Dust of Tranquility.
2. Lathing the Lenses: This is the most time-consuming and difficult step. The two Resonance Heart Crystals are mounted on the diamond lathe. The crafter must slowly, over the course of weeks, shave away layers of the crystal, guided not by sight, but by the changing resonant frequency of the crystal as it thins. The goal is to create two perfectly matched concave dishes of uniform thickness and flawless curvature.
3. Imbuing the Conduit: The phial containing the Ectoplasmic Echo is placed within the Aural Harmonizer. The device is activated, and the spirit’s sonic essence is carefully drawn out and converted into pure magical potential. This energy is then channeled through the harmonizer’s tuning forks and slowly infused into the crystalline lattice of the finished lenses, giving them the power to amplify sound.
4. Infusing the Filter: The newly empowered lenses are placed within the Enchanter’s Athanor and brought to a low, precise heat. The Dust of Tranquility is then carefully sprinkled over their surface. The heat causes the pores of the crystal to expand, drawing the dust deep inside. This infusion creates the magical matrix that allows the lenses to filter out unwanted ambient noise.
5. Final Assembly and Tuning: The finished, enchanted lenses are carefully set into the Silent Iron frames. This next step is perilous for the crafter. Inside the sound-proofed sanctum, they must put on the lenses for the first time. The initial input is a deafening, chaotic roar of amplified nothingness. The crafter must then endure this sensory assault while making microscopic adjustments to the frame’s contact points, slowly “focusing” the lenses until the roar resolves into perfect, clear, and controllable sound. Many lesser artisans have been driven mad during this final, crucial step.

Hymn of the Stone’s Ears

(Here is written a telling from the scrolls of the Under-Scribes, which they say is their memory of a song from the age before, when the words were sounds only.)

And it was that there were a people. Their great halls had no suns. Their home was the deep belly of the world, and they were the Silent-Folk, for their cities made no noise that a surface-man could hear. They had no eyes, for light was a forgotten story. Their sight was the shape of their own voices, the echo of the songs they sang to the stone.

But in the deep places, there was a great enemy. The enemy was The Quiet. Not the good quiet of sleep, but the hungry Quiet of the great worms that ate sound. They burrowed in the rock, and where they passed, echoes died. A singer could sing a great song, and the song would not come back. And this was a terror to the people.

And there was a man among them. His name is not a clear word. It is written as “First-Listener,” or sometimes “He-Who-Hears-The-Rock-Breathe.” And First-Listener was not content to wait for The Quiet to come. He said, “I will go and I will hear the worm while it is still dreaming. I will hear its hunger before it wakes.”

So First-Listener made a journey. He walked down, and down, and down, to the Heart of the World. A place where the world’s first song was still bouncing from wall to wall, a sound so old it had almost turned back into stone.

And in the Heart of the World, he found a great crystal. It was a singing stone. It drank all the echoes of all the songs and held them inside. And First-Listener sang to the stone. He did not ask for a sharp stick. He did not ask for a hard shield. He sang his song of listening. He sang of his people who were afraid of The Quiet. He sang for three days, and his voice became a part of the stone’s long echo.

And the great crystal heard his song. And it wept. It wept two tears, but they were not water. They were flat and round and clear, like ice that could not melt. They were solid echoes.

First-Listener took up the two tears of the stone. They were warm in his hands. He knew they were a gift. He carried them back up, and up, and up. And he went to the Anvil of No-Sound, an old place where a hammer’s fall was swallowed by the air. And he took the quiet iron, the iron that does not like to ring, and he made a frame. A frame to hold the stone’s tears before his own ears, so they could listen for him. And these were the Stone’s Ears.

He put them on. And the world was changed. Before, he heard his own song coming back. Now, he heard everything. He heard the whisper of the dust as it chose a place to land. He heard the slow, tired stretch of the stone in the mountain’s back. He heard the dreams of the sleeping worms, miles away in the deep rock.

And he became the first Echo-Sentinel. He stood guard. He would say to his people, “Sing your songs softly today, for the worm dreams of hunger to the east.” He would say, “Do not walk in the great hall, for I hear the stone is tired there, and wishes to fall.” And his people were safe. And they praised the name of First-Listener, and they praised the Stone’s Ears. And many copies were made, but the first were the best.

But The Quiet is a patient enemy. It does not need to fight. It only needs to wait for the songs to end. And a time came when the Silent-Folk grew too silent. Their songs faded. And their halls became still. And First-Listener, or one who came after him wearing the true Ears, became still with them, a statue of dust in a house of silence. He waited and listened, but there was nothing left to hear.

Moral of the Story: To hear everything is to learn that, in the end, there is only silence.

Suggested conversions to other systems:

Dungeons & Dragons

Ears of the Deep Delver Wondrous item, rare (requires attunement)

This bulky apparatus consists of a heavy, dark iron framework that holds two large, concave crystals. When worn, the crystals fit over the user’s ears like massive funnels, channeling and clarifying sound with magical precision.

• While wearing these lenses, you have advantage on Wisdom (Perception) checks that rely on hearing.
• You are immune to being deafened.
• As an action, you can activate the lenses to gain blindsight out to a range of 60 feet for 10 minutes. This blindsight is based on sound; you can perceive anything that is not behind total cover, but you cannot detect creatures or objects in an area of silence. You cannot use this feature again until you finish a long rest.
• The lenses have 3 charges. As an action, you can expend 1 charge to cast the clairvoyance spell (the hearing option only) without requiring material components. The lenses regain 1d3 expended charges daily at dawn.

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Call of Cthulhu

Acoustic Resonator of the Elder Caverns A bizarre and heavy headpiece of corroded, non-terrestrial iron holding two crystalline dishes that seem to absorb light. The device was clearly not designed for human anatomy, but can be jury-rigged to function. It is a relic from a pre-human, subterranean civilization that navigated by sound.

System Mechanics:

• Enhanced Hearing: The wearer gains a bonus die (add one additional tens die) on all Listen rolls.
• Aural Shielding: The wearer is immune to the deafening effects of mundane sources like explosions or gunfire, though magical sounds may still affect them.
• Focused Resonance: By concentrating for a full round, the wearer can make a Listen roll to hear through a standard solid barrier (a wooden door, a brick wall).
• Unsettling Clarity: By focusing for one minute and succeeding on an Extreme Listen roll, the Keeper may provide the wearer with information that should be impossible to know through sound—the sub-audible chittering of unseen ghouls, the alien double-heartbeat of a disguised Deep One Hybrid, or the psychic stress-fracturing of reality before a dimensional shambler appears. Perceiving reality with this level of detail is damaging to the human psyche, requiring a Sanity roll (0/1D2 loss).

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Blades in the Dark

The Echo-Drinker’s Lenses A strange, delicate-looking frame of black iron holding two crystal dishes that seem to shimmer with a faint, oily light. It is a relic from before the cataclysm, a masterwork sensory tool that allows a user to dissect the soundscape of the city.

Special Abilities:

• As a fine item, this is worth 2 Load.
• When you Survey a tense or complex situation using your hearing, you gain +1 Effect.
• When you use a downtime action to Gather Information where eavesdropping is a possibility, you may take +1d to your roll.
• You have Potency when you resist the consequences of a stunningly loud noise, such as a nearby explosion or the shriek of a ghost.
• You can push yourself to focus your hearing with impossible clarity. When you do, you can perfectly overhear a specific whisper across a loud, crowded ballroom or listen to a conversation through a standard interior wall.

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Knave

Resonance Dishes Slots: 1 A heavy iron headset holding two large, concave crystal dishes that fit over the ears. It is cumbersome and highly conspicuous.

• Qualities: Heavy, Obvious
• Mechanics:
  • You cannot be deafened by non-magical sounds.
  • You have advantage on all saving throws to avoid being surprised by an ambush, provided the ambushers are making some sound.
  • You can automatically hear a whisper from up to 150 feet away.
  • By spending your turn concentrating and doing nothing else, you can hear through a standard door or wall as if it were not there.

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Pathfinder

Acoustic Deflector Lenses – Item 15 RARE, MAGICAL, INVESTED, DIVINATION Usage Worn headset; Bulk 1

This heavy iron framework holds two large, concave crystals over the wearer’s ears. The crystals, known as Resonance Hearts, seem to absorb ambient light and glow with a faint, internal silver sheen. Though cumbersome, they are masterwork tools for auditory perception and defense.

When you invest this item, you gain a +3 item bonus to Perception checks made to hear, and you can hear sounds up to five times farther away than normal. You are also immune to the deafened condition.

Activate [one-action] concentrate

• Effect You focus the lenses to interpret echoes with supernatural clarity. Until the start of your next turn, you gain imprecise wavesense with a range of 60 feet, allowing you to “see” your surroundings with sound.

Activate [two-actions] concentrate, divination

• Frequency once per hour
• Effect You focus your hearing on a distant point. You cast a 4th-level Clairaudience spell.

Defensive Pulse [reaction]

• Trigger You would be required to make a saving throw against an effect with the auditory or sonic trait.
• Effect You attempt to deflect the incoming sonic wave. You gain a +4 circumstance bonus to your saving throw against the triggering effect.

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Numenera & Cypher System

The Echo Collector Level: 7 Form: A heavy, archaic headset made of iron and two large, crystalline dishes that fit over the ears. Effect: This device is a powerful sensory analysis tool from a prior world. It functions as a passive sensory enhancement and has two active abilities.

• Passive: The wearer’s hearing is enhanced to an incredible degree. They can hear conversations at long range as if they were right next to them. They can also understand the literal meaning of any spoken, non-encoded language, as the device interprets the pure intent behind the sound waves. The wearer is immune to being deafened by non-damaging sounds.
• Activation (Action): The user can focus the lenses for one minute to create a perfect acoustic map of the area within long range. This mental map notes all significant structures, open spaces, and moving objects, and lasts for one hour. Performing this action costs 2 Intellect points.
• Activation (Action): The user can touch an object and make an Intellect-based task to analyze its internal structure. The difficulty is determined by the object’s level. On a success, they learn one key detail, such as a hidden weakness, a secret compartment, or its primary mechanical function. Performing this action costs 1 Intellect point. Depletion: 1 in 1d20.

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Fate

The All-Hearing Ears of the Earth This is a powerful artifact that functions as an Extra, costing 2 Refresh to integrate into your character. It is a permanent, bulky headset that marks you as someone with unusual capabilities.

ASPECTS: Sees with Sound, Relic of the Silent Folk, Filters the Noise to Find the Truth

STUNTS:

• Acoustic Clarity: Because you can hear with impossible clarity, you gain a +2 bonus when you Create an Advantage or Overcome an obstacle using your sense of hearing, particularly in noisy, chaotic, or zero-visibility environments.
• Sonic Focus: Because you can focus the lenses on a single point, once per scene you can spend a Fate Point to hear any single sound source within a reasonable distance (e.g., within the same large building or across a city square) with perfect clarity, regardless of intervening barriers or noise. You can ask the GM one detailed question about what you hear.
• Resonance Analysis: Because you can analyze vibrations, when you physically touch an object or structure, you can make an Investigate roll to discern its internal structure. On a success, you create a situation aspect like Cracked Foundation or Hidden Lever with one free invocation.

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Savage Worlds

The Listener’s Rig This strange, ancient device must be mounted and calibrated to the user, a process that takes several hours. It is considered an Arcane Device.

Requirements: Users without the Weird Science Arcane Background must make a Smarts roll at -2 each time they use one of the Rig’s active abilities. A failure results in the user becoming Stunned as their brain is overloaded with sensory data. Mechanics:

• Passive: The Rig grants the user the benefits of the Keen Sense (Hearing) Edge. The user cannot be Surprised by any foe that is making noise. The user is immune to mundane effects that would cause deafness.
• Focus Hearing (Action): The user can focus the Rig. For the next round, they may make Notice rolls to hear sounds through standard walls or up to a mile away. They gain a +4 bonus on these specific Notice rolls.
• Analyze Weakness (Action): The user can touch an object or creature and make a Repair or Research roll. With a success, they discover a structural weak point. The next successful attack made against that specific point is treated as having +4 Armor Piercing. With a raise, the Armor Piercing is +6.

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Shadowrun

Saeder-Krupp “Echo-Hound” Auditory Suite A top-of-the-line piece of headware, rumored to be reverse-engineered by Saeder-Krupp from a captured paracritter’s unique sensory organs. It combines advanced acoustic sensors with a low-grade divination matrix, offering unparalleled surveillance capabilities for a price.

• Type: Headware (Cyberware)
• Rating: 6
• Capacity Cost: [12]
• Essence Cost: 0.8
• Availability: 18R
• Cost: 145,000 Nuyen
• Mechanics:
  • Passive: The wearer gains the benefits of Audio Enhancement Rating 6 and a Damper that makes them immune to the effects of flash-bangs and other mundane sonic attacks. The wearer also gains a +3 dice pool bonus to all Perception tests that rely on hearing.
  • Acoustic Analysis (Complex Action): The user can make an Engineering + Logic [Mental] (4, 1 minute) Extended Test to create a detailed acoustic model of a building or structure they are in. Hits on the test can be spent to ask the gamemaster specific questions about the structure, such as the location of hidden rooms, the number of people inside, or structural weak points.
  • Focused Eavesdropping (Major Action): The user can spend a point of Edge to focus the suite on a single point within 100 meters. For the next minute, they can hear everything at that point as if they were standing there. This works through most standard building materials but is blocked by high-threat security shielding.

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Starfinder

Resonant Echo-Lenses – Item 15 SLOT Head; PRICE 112,000 credits; BULK 1

This sophisticated headset consists of two large crystalline dishes mounted in a lightweight alloy frame. It is a piece of advanced sensor technology that grants the wearer a form of acoustic omniscience, allowing them to dissect the soundscape around them with supernatural clarity.

• Mechanics:
  • You gain a +10 insight bonus to Perception checks and are immune to the deafened condition.
  • As a move action, you can activate the lenses to gain blindsense (sound) 60 feet for 1 minute.
  • 1/day (Standard Action): You can use the lenses to perform a detailed analysis of a single object or creature you can hear. You learn its current Hit Points and Stamina Points, any damage reduction or resistances it has, and any immunities it possesses.
  • 1/day (10 minutes): You can use the lenses to replicate the effects of a clairaudience spell.

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Traveller

Broad-Spectrum Acoustic Sensor Suite A sophisticated piece of high-tech surveillance gear, often used by scouts for long-range reconnaissance or by geologists for seismic surveys. It consists of a bulky but comfortable headset with large, articulated parabolic collectors.

• Tech Level (TL): 14
• Weight: 2 kg
• Power: Internal (24 hours)
• Cost: Cr 150,000
• Mechanics:
  • Passive Enhancement: The wearer gains DM+4 to any check involving listening or analyzing sounds. The built-in noise-cancellation and damper system makes the user immune to deafening from mundane loud noises.
  • Long-Range Surveillance: The suite can be focused on a specific point within 1 kilometer. The user can make a Difficult (10+) Electronics (sensors) check to listen in on conversations or specific sounds at that point. DMs are applied for intervening barriers (-2 for a standard wall, -4 for a reinforced wall, etc.).
  • Structural Sonar: By placing a small, connected transducer against a structure or object, the user can activate the suite’s active sonar mode. The user may then make an Average (8+) Engineer check to receive a detailed schematic of the object’s internal structure, revealing hidden compartments, stress fractures, or power conduits.

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Warhammer

Dwarf-Crafted Resonator Horns An item of incredible artistry and engineering, these “horns” are not musical instruments but a masterwork listening device created by a long-dead Dwarf Engineer Guild. They are made of polished brass and bronze, covered in runes of silence and clarity. The large, horn-like collectors are designed to be worn over the ears, funneling even the slightest sound to the wearer with perfect fidelity.

• Qualities: Fine, Defensive, Practical
• Encumbrance: 1
• Mechanics:
  • The wearer gains the Keen Senses (Hearing) Talent. If they already possess this Talent, all bonuses from it are doubled (e.g., a +20 bonus to relevant Perception Tests instead of +10).
  • The wearer is immune to the effects of non-magical loud noises and cannot gain the Deafened Condition from such sources.
  • Pinpoint Hearing (Full Action): By spending a full action to adjust the horns and concentrate, the wearer can make a Difficult (–10) Perception Test to hear a specific sound, such as a whispered conversation, up to 100 yards away, even through a standard stone or brick wall.
  • Find Weakness (Action): The wearer can place one of the horns against a structure (a wall, a door, a breastplate) and spend an Action making a Challenging (+0) Perception Test. On a success, they discover a single structural weak point. The next attack against that specific point that successfully inflicts at least 1 Wound automatically inflicts a Critical Hit, regardless of the number of SL on the attack roll.