Per 
Item #: SCP-XXXX
Object Class: Euclid
Special Containment Procedures: SCP-XXXX is to be stored in an environment with extreme sonic dampening measures in place. The item must be stored in no less than 37.8 litres of non-Newtonian oobleck comprised of powdered bitumen and heavy water. The surrounding container for the non-Newtonian solution should be borosilicate glass wrapped in viscoelastic polymers. The volume of oobleck should be monitored weekly as the moisture levels are critical to maintaining the sonic dampening properties of the solution.
At the time of writing the facility that houses SCP-XXXX is also equipped with persistent active noise control in all storage units within the containment zone (due to the unintentional exposure of personnel in an adjoining storage container). Unrelated to the storage of SCP-XXXX the containment facility is also equipped with pressure controllers that can quickly generate a vacuum in the environment which would aid in the event of widespread sonic contamination, however such measures are extreme due to the nature of this particular threat and would most likely be ill advised (see incident report XXXX-01-A.
The exact wave propagation parameters of SCP-XXXX are currently unknown so it is critical that no broadcast or recording equipment be present in containment rooms or research laboratories while SCP-XXXX is out of solution. It is a further recommendation that no recording or broadcast devices be present even while SCP-XXXX is in solution.
Personnel charged with the care and research of SCP-XXXX must undergo personality testing on a quarterly basis. No more than one researcher can examine the item out of containment at any one time and experiment notes and observations must be handwritten or photographic in nature, recordings of any kind are strictly prohibited.
Description: SCP-XXXX has the dimensions of a standard A440 tuning fork, which measures 98mm on the outside flats of each tine and 91mm on the inside flats of each tine. SCP-XXXX vibrates at 441.5HZ as observed on an oscilloscope, which deviates from the expected frequency based on tine configuration. This deviation is more likely than not a result of the composition of the tuning fork rather than the geometry. The exact composition of SCP-XXXX is unknown. Mass Spectrometer reveals that the tuning fork is comprised of 98.27% high-carbon aluminium alloy. 1.73% of the component substances cannot be identified via conventional methods. Attempts to sample the material for further analysis have been unsuccessful as detailed in Addendum XXXX-01.
SCP-XXXX has no inherent anomalous properties when not subject to vibration, however even the slightest disturbance causing either of the tines to reverberate can cause serious physiological and psychological effects in organic life forms. Physiological and psychological effects of reverberation emanating from SCP-XXXX are varied in severity, seemingly correlated with the strength of the sonic load generated, however proximity to the tuning fork does not seem to be a factor in the effects. Experiments performed on mice in testing site █████████ noted that a lab mouse placed at 1 meter away from the tuning fork, and a mouse placed at 50 meters away from the tuning form experienced similar symptoms. Both mice became extremely agitated and aggressive after exposure, and within 1 week of exposure [REDACTED]. Subsequent experiments have shown that there is a 'gestational' period after exposure during which brain chemistry is continuously altered until the subject eventually loses cognitive autonomy. It is unclear how much exposure starts this chain reaction.
Initial containment protocols for SCP-XXXX did not include active noise control in all research areas of the facility, as a result it was determined that the effects of exposure to the sonic load are cumulative, eventually producing more pronounced symptoms after repeated exposure. At the time of writing, SCP-XXXX is no longer being actively researched due to the limited risk of contamination with appropriate containment, and the extreme and not entirely classified risk to all research staff involved with investigating its anomalous properties. The recommendation is to leave in containment indefinitely.
Addendum XXXX-01:
SCP-XXXX was transferred by the foundation to storage facility █████████ on ██/██/96. Foundation handling instructions provided parameters for sonic dampening measures to be used prophylactically. Initial testing was aimed at determining the composition of SCP-XXXX. Non-invasive testing measures yielded results that accounted for roughly 98% of the composition of SCP-XXXX and its physical properties and specifications were documented and recorded. Attempts to generate a sample of the material were unsuccessful and resulted in dangerous consequences. On ██/██/98 researchers attempted to observe the properties of the anomalous object by rapidly heating it to determine the temperature at which it would deform. This resulted in loud reverberations emanating from the object. Scientists in the laboratory appeared to be effectively shielded from the sonic contamination, however 6 containment agents in 2 adjacent (roughly 300 meters away) laboratories were not equipped with sonic dampening equipment and immediately started suffering symptoms of exposure. Containment Agent ███████(A) reacted violently and subsequently [REDACTED]
As a result, active noise control devices were installed in every laboratory and containment room at storage facility █████████
Incident XXXX-01-A:
On ██/██/95, research facility █████████ suffered a complete loss of personnel due to a ██████ outbreak started in one of the transcription rooms. Transcriptionist ████ █ ███████ had begun producing written records of a series of experiments being performed on SCP-XXXX.
Supervisor logs note a deterioration of ███ overall mental health through the month long transcription process. An acute episode where Transcriptionist ███████ was found having ████████ all the ██████ in the ██████ ████████ wing resulted in a forced mental health leave of █ weeks. On [REDACTED] returned and resumed work on the transcription of the experimentation recordings. Security logs which have subsequently been destroyed (it appears the effects of SCP-XXXX can be transmitted through recordings as well as direct exposure) showed the resulting security incident which resulted in a complete loss of personnel at the facility.
Subsequently the entire compound has been vitrified and sealed in viscoelastic polymer. All SCPs being stored at the compound have either been destroyed or transported to other containment facilities. SCP-XXXX has been transferred to █████████ with explicit instructions about sonic dampening precautions based upon our understand of the threat on this date.
Transcript Log ██/██/94 - Transcriptionist ███████ :
[REDACTED]
Dr. F██████: Hey ████████, is the recording active?
Assistant D████████: Yes doctor, we're online. Ready whenever you are.
Dr. F██████: Good, lets begin. *cough* *cough* This is Doctor F██████, and today is the ██th of ██████, 1994. We are currently doing an initial investigation of the physical properties of SCP-XXXX. The information sheet indicates that this item was first acquired by the foundation on [REDACTED]. This will be the first assessment of the specimen which is believed to have certain characteristics which cause personality disturbance after prolonged exposure. The current hypothesis is that electromagnetic radiation is the culprit. As a safeguard, both myself and the technicians in the room are wearing suits with electromagnetic shielding. We're going to begin by documenting the observable properties of the specimen which appears to be a tuning fork. The physical specifications are as follows…
[OMITTED FOR RELEVANCE]
Assistant G█████████: The oscilloscope is reading 441.5Hz doctor. *long pause* Doctor? *long pause*
Dr. F██████: *breathing heavily* We should double check that result, perhaps the frequency is variable with the amount of applied force? If we eat it harder will that change the frequency?
Assistant G█████████: eat it?
Dr. F██████: Sorry, strike it.
Assistant D████████: *faintly* ugh, i've got a splitting headache.
Assistant G█████████: How much force?
Dr. F██████: 10 Newtons ought to be sufficient to eat it… sorry, confirm the hypothesis.
*The tuning fork is struck and reverberates*
Dr. F██████: I will eat them all, I will eat them all, I will eat them all
*At this point it is believed that the transcript is no longer faithful to the events in the video*
Assistant G█████████: my head! what is happening…
Assistant D████████: the hunger…..
Dr. F██████: I will eat them all
I will eat them all
I will eat them all
I will eat them all
I will eat them all
I will eat them all
I will…
*Transcript Ends*
