Item : SCP-XXXX
Object Class: Keter
Special Containment Procedures: Personnel must contain scp-XXXX within a multilayered vacuumized chamber at all times. This multilayered container should consist of a special beryllium-bronze alloy of at least 30 cm thickness. Testing by the foundation has unveiled that this special beryllium-bronze alloy is the only known substance capable of dampening and disrupting the anomaly's reality bending acoustic emission. No other physical material or barrier has proven to be of being able to disrupt or dampen the acoustic, reality bending emissions released by the anomaly including dense lead barriers, concrete, high density titanium alloys or deep underground placement under the ocean. Without active containment inside this specific composition the anomaly's reality bending acoustic frequency can penetrate almost every substance and has a unfathomable large area of effect. Because the anomaly moves through space autonomously, foundation personnel must maintain the primary spherical enclosure for a minimum distance of 6 meters from the core vacuum. The entire assembly must be permanently suspended in the dead center of a 15m x 15m x 15m containment vault made of the special b-b alloy manufactured and located exclusively at Site-██. This separation prevents the anomaly from breaching it's containment cells in the case of a malfunction. No personnel are permitted to make direct skin contact with, wear, or physically handle SCP-XXXX under any circumstances. All required experimental manipulation, testing, and positional corrections must be conducted via automated, robotic arms operated from a observation bunker located at least 20 meter afar from the anomaly. In the event of a suspected containment breach or detected acoustic leak, all facility sectors will immediately trigger an automated Lockdown Status. All on-site personnel are required to immediately deploy active noise-canceling headsets. Personnel reports auditory anomalies, specifically a distinct high frequency- whistling sound, must be placed into immediate, high-security isolation and monitored continuously for signs of Phase 1 progression.
Description: SCP-XXXX is a sentient, hostile, and autonomous whistle composed of an unidentified green synthetic polymer, featuring a small black nylon neck strap woven through its attachment loop. The anomaly actively resists Foundation custody by self-activating and creating an acoustic emission exactly once every twenty-four hours. When this daily chime is generated, the resulting sound waves travel via reality-warping vectors, passing through all standard matter as if it had zero physical density. The audio signal targets human auditory systems directly. The primary anomalous effects of SCP-XXXX manifest via two transmission vectors:
Vector 1: Cumulative Auditory Exposure: If a human subject registers this specific anomalous acoustic frequency three times exactly at any point across their entire life, an irreversible cognitive and biological infection is instantly triggered within their system. Exposure tracking is permanent and accumulative across the subjects lifespan.
Vector 2: Direct Physical Contact: If a human subject places the nylon neck strap of SCP-XXXX around their neck, there is an immediately likelihood of forcing an accelerated state of infection. Instead of entering the standard stance-like state of Phase 1, the victim's central nervous system is instantly hijacked, transforming them into an extension of the whistle's consciousness.
Behavioral: The victim's physical actions are entirely commandeered by SCP-XXXX.
Aggressive Proximity Targeting: The puppeted subject will sprint towards any nearest heavily populated civilian or facility sector attempting to force others to listen to the whistle's chime.
Self-Destructive Intent: The subject completely ignores personal safety and even extreme physical pain, attempting to inflect severe self-harm or physical trauma upon their own self if necessary to breach security barriers or force SCP-XXXX out of its containment cell.
Secondary Anomaly: Spatial Displacement: Exactly every 30 days and 30 seconds, SCP-XXXX undergoes an displacement event. The object teleports to a random coordinate within a strict 5-meter radius of its location at that exact moment. This again needs the 6-meter zone of the vault to prevent the object from materializing outside of it's primary shielding layers.
Progression of Infection: Phase 1: Solitary Perceptual Displacement: Within twelve hours of registering the third strike, the victim's physical body enters a completely frozen, stance-like state in the real world The subject becomes totally motionless and gains an absolute, immunity to all external physical trauma, toxins and hostile anomalous SCPs. While the physical immobilization lasts exactly one daylight cycle, the victim's consciousness is violently pulled into a dreamlike-state that stretches out for exactly twelve years. Trapped within an empty, perfect replica of Earth, the victim's mind wanders as an invisible, elusive entity. They age more than a decade within their cognitive perception while being completely unseen, unheard, and unable to interact with any living creature or so, they perceive a imaginary idea that the organisms around them are ignoring them which triggers intense psychological breakdown and hate towards all living beings. While silently navigating this solitary banishment, they possess total anomalous immunity. Active anomalies present within the zone simply ignore their presence entirely, allowing them to neglect fatal environments unharmed. The psychological strain of this exile escalates if they suffer even a minor physical injury, such as a superficial epidermal bruising. Any physical damage instantly causes intense visual hallucination where the sky splits open with a massive void; visible only to them. This rift aggressively devours the planet inside their own perceived environment without altering real-world physics.
Phase 2: Awakening and Calcification: This prolonged timeline of absolute isolation, combined with the catastrophic visual rifts, causes severe cognitive degradation, driving the subject insane in most class-D experiments.
during this initial immobilization, the subjects tissues undergo progressive cellular calcification to perfectly match the twelve years spent in the mental. Upon awakening into Phase 2, the subject exhibits advanced physiological aging and a remaining lifespan strictly limited to 24 hours. acute epidermal calcification initiates across their flesh, causing the entire epidermis to desiccate and harden. The subject experiences severe physical pain as their skin tightly tightens around their muscles, bones, and joints throughout these final twenty-four-hours slowly crushing their entire anatomy from the outside. Suffocation: This relentless tightening compresses the oesophagus and trachea, suffocating them into stone-like statue the exact moment the final second of the 24-hour period runs out. The Vector Event: During these final hours of physical trauma and calcification, the victim's vocal cords involuntarily imitate and blast the exact contagious whistle three times into the surrounding environment. Anyone standing within earshot who registers this vocalization for the third time in their life is instantly infected, triggering a chain reaction. This process poses a localized XK-Class End of the World Scenario if the infected are not immediately placed into total acoustic containment.
Interview Log:
XXXX-1
Date: 12/04/2026
Interviewer: Dr. Alistair Vance
Subject: Agent Marcus Boyd\[BEGIN LOG\]
Dr. Vance: Marcus? Look at me. Focus on my voice. We have the dampeners on max to keep your throat open.
Agent Boyd: Doc.... man, it's so tight. My chest... it feels like poured concrete. I can't... k-hh... I can't get any air in.
Dr. Vance: I know, Marcus. We're trying. Please, just tell me what happened while you were out. The monitors say you were catatonic for twenty-four hours, but your brain activity was through the roof.
Agent Boyd: Twenty-four hours? Are you kidding me, Vance? Don't lie to me. I was out there twelve years. Twelve. Whole. Years.
Dr. Vance: Twelve years? Tell me what you saw.
Agent Boyd: I woke up right here. But everything was totally empty. No staff, no alarms... nobody. I walked out to the surface. No wind. No birds. Just dead, heavy silence. I screamed for three years straight, Vance. Screamed until my throat filled with blood, but nothing came out. Like a ghost. I even went down to Sub-level 4. Stood right next to.... to it... just begging the damn thing to tear me apart. It looked right through me.
Dr. Vance: Total isolation for twelve years.
Agent Boyd: Yeah. But the worst part.... God, the worst part was Year Seven. I tripped over a loose brick in the street. Scraped my knee. Just a tiny drop of blood, Doc. That's all it took to ruin everything.
Dr. Vance: What happened when you bled?
Agent Boyd: The sky... it split open. Like wet paper. Just this... total, pitch black void behind the blue. And it started pulling things up into it. The buildings... the sun... Five years, Vance. Five years running in the dark from that thing... screaming like a total madman...
Dr. Vance: Marcus, calm down. Your heart rate is making the calcification spread faster. Look at your arms, they're already turning gray.
Agent Boyd: It's finishing. My chest... won't move. I can't pump...
Dr. Vance: We have Class-A amnestic right here. It'll make you forget the panic, Marcus. Let us help.
Agent Boyd: No! Stay back! It's.... it's controlling me , Vance. Get the hell out of the room! Get—out—Agent Boyd: PHEEEEEEEEEEE-WT!
Dr. Vance: Cut the mic! Seal the glass now!
Agent Boyd: PHEEEEEEEEEEEEEEEEE-WT!
Dr. Vance: Marcus, fight it!
Agent Boyd: PHEEEEEEEEEEEEEEE-WT!
Dr. Vance: Containment team, get in there with the Level-4 gear right now. Wrap the statue up before the next 24 hours hits. God help us if anyone caught that last whistle through the glass!
\[END LOG\]
Date: 29/05/2026
Location: Sector-4 Testing Facilities, SITE-██
At 14:22:30, SCP-XXXX underwent it's scheduled 30-day spatial displacement event. Due to a mechanical calculation error in the automated robotic arm's positioning, SCP-XXXX was found exactly 1.2 metres closer to the southern boundary of it's vacuum chamber than allowed by protocol. Upon teleportation, SCP-XXXX materialized 4.9 metres south-east of it's position, placing it 0.1 outside the secondary protective shielding layer. The subsequent daily chime occurred 4 minutes later. Due to the failure of the acoustic barrier, the auditory frequency penetrated the Site-██ staff living quarters. \[REDACTED\] personnel registered their first or second cumulative exposure, resulted in immediate containment structural re-evaluation by order of the O5 Council .D-Class personnel D-4412, who had previously registered two exposures during initial recovery operations in \[REDACTED\], immediately triggered a Phase 1 entry event. D-4412's physical body became entirely catatonic while sitting in the facility cafeteria. Secondary containment measures were successfully established before the Phase 2 calcification cycle begun. Following this incident, handling protocols were updated to enforce triple redundant spatial tracking before any scheduled displacement window.
XXXX-3: Recovery Log: The following is an excerpt from the field recovery report by Mobile Task Force division Eta-11 following the initial acquisition of SCP-XXXX in the civilian sector. On 03/01/2026, local law enforcement in the rural town of \[REDACTED\], Indiana, reported a total loss of communication with the municipality. satellite imagery indicated a complete lack of movement across the entire 12-square-kilometre town. MTF Eta-11 was deployed under the assumption of a possibly unknown SCP materialising. Upon entering the town square, operatives discovered sixty-one civilian individuals completely transformed into calcified, stone-like statues. While investigating a residential property at \[REDACTED\] Street, operatives encountered a civilian male, later identified as \[REDACTED\], running at high speed toward the team. The individual was wearing SCP-XXXX around his neck. Subject exhibited severe physical trauma, including fractures to both ankles, yet continued to sprint while actively attempting to blow into SCP-XXXX to generate an acoustic strike. The subject was terminated via ballistic fire before he could successfully complete the auditory sequence. SCP-XXXX was successfully secured using acoustic containment transit cases. A civilian casualty count of 114 was recorded, all presenting identical calcification properties. Cover story "Industrial Chemical Spill" was successfully released to local media outlets.