Item #: SCP-XXXX

Object Class: Euclid Thaumiel

Special Containment Procedures: Due to the properties displayed by SCP-XXXX when exposed to mass populations, SCP-XXXX has been exposed to 7,542 D-Class, outfitted with mental implants allowing control of brain-wave functions. These individuals, known as SCP-XXX-1, are held in a modified Mass Humanoid Containment Cell, and are held in stasis by redundant IV and security systems. Modifications to SCP-XXX-1's mental implant objectives must be voted on by the O5 Council.

Previous Special Containment Procedures Close Containment Procedures [Any instances of SCP-XXXX- found must be given Class-C amnesics if possible. If containment fails, all instances of SCP-XXXX-A or B should be terminated by MTF Eta-11 ("Savage Beasts"). If SCP-XXXX positive individuals are present within a site, all affected personnel should be terminated, along with cutting off communication to the site

Previous Special Containment Procedures Close Containment Procedures [-One instance of SCP-XXXX must exist at one time, whether it be digitally, or physically. SCP-XXXX is currently stored in Site-13 High-Security object storage, on a solid state drive. In case of a containment breach, the room is to be flooded with hydrochloric acid and MTF Eta-11 ("Savage Beasts") is to be deployed.

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Description: SCP-XXXX is an audial cognitohazard. SCP-XXXX is physically impervious to damage, if the storage method is the last remaining copy. As of ██/██/20██, neutralization testing has been indefinitely postponed.

Upon audio exposure to SCP-XXXX to a sentient, living human, they rapidly transform into a Caucasian male, approximately weighing 66 kilograms and 1.8 meters in height. This figure is known as SCP-XXXX-A. SCP-XXXX-A responds to no external stimuli. Full transformation will occur in a period of time between 12 seconds and ██ hours.

4/XXXX Security Clearance Required Close

Due to event 4/XXXX-██, testing of SCP-XXXX-A transformation on individuals with a psonic resistance of more than 95 is indefinitely suspended.

Test Log 01 Close [__Test 01 - Date: 06/12/20█4 __ Subject: SCP-XXXX, 3 D-Class personnel fitted with explosive collars.

Procedure: Provide the individuals in the chamber with the following: Three laser drills with remote shut-off, and that cannot break the containment cell, three construction-grade jack-hammers, three chisels, and three pick-axes. Instruct the D-Class individuals to destroy SCP-XXXX with whatever means provided to them.

Results: SCP-XXXX remained unaffected by all means used to attempt to destroy the inscribed sound-waves. **

Analysis: SCP-XXXX is seemingly indestructible.

Test Log 02 Close [Test 02 - Date: 02/02/20█3 Subject: SCP-XXXX, 3 D-Class personnel fitted with explosive collars.

Procedure: Provide the D-Class with the following: Three construction-grade jack-hammers, three chisels, and three pick-axes. Instruct the D-Class individuals to destroy the two instances of SCP-XXXX with whatever means provided to them.

Results: The first instance of SCP-XXXX was destroyed with the expected force required to destroy a stone tablet. The stone tablet was inert after destruction, and was incinerated. The D-Class personnel was instructed to destroy the second instance, which led to the same results as test 01. **

Analysis: Instances of SCP-XXXX can be destroyed until there is one instance left, which then is seemingly indestructible.

Addendum: SCP-XXXX is now classified as "Thaumiel" as of Incident 5/XXXX-██

O5 Clearance required-Incident 5/XXXX-██ Close On November 13th, 201█, Site-13 underwent a containment breach due to the escape of SCP-████. Due to the audio-related properties of SCP-████, SCP-XXXX was exposed to the workers of the █████ Oil Company. However, this breach was not detected for over two hours, allowing the cognitohazard to affect the entirety of the city of █████, population 5,542. The breach was noticed when foundation operatives within the city withheld contact for five hours. Upon investigation, It was found that when a population of 5,000 individuals or more are infected with SCP-XXXX, they lose the main cognitohazardous effects of SCP-XXXX, and regain normal sentience and activity. Motions were filed to classify SCP-XXXX as neutralized, but further testing discovered a secondary effect of the anonmaly. If more than 10% of affected individuals mentally focus on a subject, idea, or action, anomalous activities occur, coinciding with the focus of the population. The higher concentration of the population focusing, and the mental capacity of the population depends on the maximum effect of the anomaly. As of December 14th, 201█, mass inoculation of D-Class is permitted. -O5-2

SCP-XXXX-A can be terminated while transforming through any method that an uninfected individual could be. SCP-XXXX-A will seek out the nearest door as slow as 5, and as fast as 1,200 kph, depending on the distance. SCP-XXXX-A will phase through matter if needed to arrive at a door, as long as it is not near any sentient beings capable of sight. Upon SCP-XXXX-A's arrival at a door, it will knock three times. After knocking, it will utter the phrase, "█████". No significant links have been found between SCP-XXXX-A and the United States Department of Treasury. A female figure, dubbed SCP-XXXX-B will appear, and open the door. SCP-XXXX-B's appearance flucuates between appearances, with facial structure, clothing, jewelry, and speech fluctuating between appearances. If SCP-XXXX-B is one morphing figure, or if it is a collective of many of the same species is unconfirmed. SCP-XXXX-B will greet SCP-XXXX-A. SCP-XXXX-A will complain about an arbitrary issue. Recorded issues have included poor hygiene, uncleaned clothing, or other typical domestic non-issues. No pattern to these complaints have been found. After the issue is stated, SCP-XXXX-A will state [COGNITOHAZARD REDACTED], the audial cognitohazard triggering this event. All individuals within a radius of 7.62 meters will laugh at decibel levels unprecedented by any known humans (approximately one-hundred-thirty-five [135] decibels). SCP-XXXX-B demanifests after this point.The affected individuals will transform into SCP-XXXX-A, and transport into the largest population center in a 50 mile radius. SCP-XXXX-A has been known to use public transportation, abandoned vehicles, sleds, and airplanes to reach their destination. SCP-XXXX-A's potential sentience is still unknown. When all individuals are affected in the population center, or when 5,000 individuals are affected, SCP-XXXX reaches stage 2.