The regeneration implemented by the item is limited, only affecting 
the damage inflicted by the weapon itself. This regeneration seems 
to be an automatic action, and will continue in almost all situations. 
Both firing the weapon and the resulting regeneration are 
understandably painful, and participants which have used the item 
once are generally disinclined to repeat usage. 


However, there have found to be some occasional abnormalities 
regarding the regeneration. Most often this manifests simply as 
minor mutations of the original subject, such as changes in size, 
pigmentation, and structure of the original organelles. These are an 
uncommon occurrence, capable of happening during any use of the 
weapon, though generally tend to occur during repeat usage. 


There are more drastic abnormalities, though these are much rarer, 
and coincide with highly frequent use. These mutations can range 
from anything such as the growth of extra joints and digits in the 
affected arm, to a complete change of the chemical or physical 
structure of the limb. 


One test subject unknowingly had the bone matter within his arm 
converted into an unstable explosive compound, only discovering 
the fact when it detonated, causing two fatalities and three 
casualties. Another had the entire bone and musculature structure 
morphed into fully functional serpentine physiology. 


Footnotes 

1. SCP-1884-B was permitted to be used in testing with its approval. 
SCP-1884-B was able to fire five shots from SCP-154 within a 
minute. Testing ceased on SCP-1884-B's request following 
SCP-1884-A becoming distressed due to pain associated with 
SCP-154 use. 


« SCP-153 | SCP-154 | SCP-155 » 


SCP-155: Infinite Soeed Computer 


A non-anomalous processor board removed from SCP-155. 


Item #: SCP-155 
Object Class: Safe 


Special Containment Procedures: SCP-155 is contained in a 
heat-treated and radiation-shielded containment chamber at Site 
Recovered documentation and the reverse-engineered compiler for 
SCP-155 are available for all personnel with sufficient clearance on 
Site 's secure file server, but execution of programs on SCP-155 
may only be performed with prior permission from at least two (2) 
Level 3 Senior Researchers. Please see Document 155-EXEC-1 for 
radiation and thermal safety procedures for the safe operation of 
SCP-155. 


As of Incident 155-08, experimentation on SCP-155 has been 
suspended pending decontamination of SCP-155's former 
containment chamber and relocation to a new containment 
chamber. All tasks intended for execution on SCP-155 must now be 
triple-checked to prevent the possibility of non-halting execution. 


Description: SCP-155 is a complex electronic construct consisting 
of a highly modified Cray CS6400 supercomputer, a dedicated 
radioisotope thermoelectric generator, and a device that has yet to 
be fully reverse-engineered. SCP-155 was recovered from the 
basement of Prometheus Labs' primary research laboratory by 
elements of Mobile Task Force Mu-4 ("Debuggers") following the 
destruction of the facility and subsequent Foundation intervention. 


When a program and accompanying data is loaded into SCP-155 
and executed, SCP-155 generates a spherical temporal distortion 
field with a radius of approximately 5 m. Within this sphere of 

influence the passage of time is rapidly accelerated, resulting ina 
hyperbolic increase in the effective processing power of SCP-155. 


Execution begins slowly as the processing hardware of SCP-155 is 
dated, but its effective processing power approaches infinity after 
approximately 8 minutes and 14 seconds of execution. From 
fragments of documentation recovered from Prometheus Labs, 
SCP-155 was used to perform massive calculation jobs that would 
have taken months if not years of processing time with conventional 
computing devices. 


Despite its capabilities, operation of SCP-155 is highly dangerous as 
heat and radiation generated by SCP-155 are trapped and 
accumulate during operation, forming a sort of 'event horizon’ of 
energy that is released when execution ends. The execution of 
programs that exceed six (6) minutes results in enough radiation 
generated that the containment chamber in which SCP-155 is 
contained must be decontaminated before research personnel may 
re-enter. 


Addendum 155-01: Incident 155-08 


On // , Dr. entered a flawed program into SCP-155 that 
resulted in non-halting execution (an infinite loop). After attending 
researchers and technicians realized the error, an emergency 
shutdown of SCP-155 was initiated but it could not be fully stopped 
until execution had exceeded 8 minutes and 3 seconds. At this 
point, an intense wave of heat and radiation melted through 
SCP-155's containment chamber, resulting in eleven (11) casualties 
and the total destruction of the C wing of Site . SCP-155 only 
received minor damage in the incident, but experimentation is 
suspended while revised safety procedures are under review and 
replacement parts are procured to repair components damaged by 
accelerated aging. 


« SCP-154 | SCP-155 | SCP-156 » 


SCP-156: Reanimating Pomegranate 


Item #: SCP-156 
Object Class: Euclid 


Special Containment Procedures: SCP-156 is to be kept in 
refrigerated Storage Unit 19c except when removed for 
experimentation. Subjects infected by SCP-156 are to be restrained 
and monitored for their own safety. From September 21st-March 
21st, infected subjects should be kept within a secure storage unit 
unless the experiment’s parameters indicate otherwise. Both storage 
facilities should be monitored by security camera. The termination 
and autopsy of D-Class Personnel assigned to SCP-156 should be 
delayed until after March 21st. No personnel are permitted to 
consume SCP-156 except D-class personnel unless approved by a 
level 3 staff member. 


Description: SCP-156 is a group of exactly 181 pomegranate arils. 
The number of instances of SCP-156 is constant. When one is 
ingested or destroyed, it is replaced instantaneously with a new one 
among the largest group of contiguous instances. Otherwise, the 
instances can be moved around freely. After leaving the group (i.e. 
after an instance is touching no other instance), the instance will 
spoil normally, after which a new instance will appear. When all 
instances are destroyed simultaneously, all 181 instances reappear 
randomly at the location of one of the destroyed arils. Attempts to 
measure the time between destruction of one instance and the 
appearance of a new one using high-speed cameras have so far 
failed. 


If SCP-156 is ingested between March 21st and September 20th, 
subjects display no signs of infection until noon of September 21st, 
when all vital processes abruptly cease. A similar effect is observed 
immediately when SCP-156 is ingested after September 21st. 
Despite being technically dead, postmortem examinations of 
subjects have been unable to discover a cause of death. Subjects 


appear to have been in perfect health, aside from any pre-existing 
conditions. While "dead", subjects do not show any signs of 
decomposition though the bodies of many subjects begin displaying 
bruising and scarring consistent with torture. While the majority of 
subjects suffer these wounds, not all do, and no reliable formula has 
been discovered to predict which subjects will be affected. Infected 
subjects remain in this dormant state until noon of March 21st, when 
life processes restart. Subjects remember little of the intervening 
time period. While most subjects are entirely unaware that any time 
has passed since their apparent death, some claim to recall a pale 
white male face and a wilting pomegranate tree. 


Subjects continue to die and reanimate annually on September and 
March 21st, respectively, until killed by another cause. Reanimation 
only occurs from deaths caused by ingesting SCP-156. 


After undergoing a single death-reanimation cycle, subjects began 
displaying high levels of distress and paranoia as time approaches 
September 21st, even if they have not been made aware of the 
death-reanimation cycle. Furthermore, subjects will take extreme 
lengths to avoid taking any sort of risk or danger to their person, 
even if they had displayed risk-taking behaviors prior to ingesting 
SCP-156. Over the course of multiple death/reanimation cycles, 
these psychological symptoms become more pronounced. At the 
same time, physical symptoms during the dormant period increase 
in intensity for the subjects suffering from them. Eventually, physical 
wounds on subjects will begin to emulate burns and puncture 
wounds. Many subjects gain a phobia of dogs and dead plants after 
3-5 reanimations. After several deaths caused by SCP-156, the 
ocular tissue undergoes necrosis in many subjects. This tissue does 
not reanimate with the rest of the body. Often, after ten or more 
reanimations, reanimation of bodily processes will occur but the 
subject will fail to regain consciousness, entering a comatose state. 
Death and reanimation continues annually even after subjects have 
reached this stage. 


SCP-156 came to the attention of the Foundation after an incident in 
, Greece, after people died on September 21st, 19 ,without 

apparent cause. The Foundation became involved after locals 

reported the return of several of the dead who had been interred in 


above ground vaults the following spring. After questioning these 
subjects, all reported having attended a party at the house of one 
AK _ ,who had been buried and was found, asphyxiated in her 
coffin. SCP-156 was discovered within the house, fresh despite the 
intervening six months since the incident. Testing commenced on D- 
Class personnel on August ,19 . D-E15624, the first test subject, 
died on September 2 , 19 , and was autopsied. No cause of death 
could be found. Subject was left under monitoring in storage. On 
March 2 , 19 , subject began to show brain activity and subject's 
heart began beating despite the body having taken significant 
damage during the autopsy. D-E15624 expired shortly thereafter 
without regaining consciousness. Arils given SCP status and longer 
term testing was ordered. 


« SCP-155 | SCP-156 | SCP-157 » 


SCP-157: Mimetic Predator 


Item #: SCP-157 
Object Class: Euclid 


Special Containment Procedures: When not being used in an 
experiment, SCP-157 is to be stored in its cryptobiotic form, in a dry, 
airtight container. It is estimated that SCP-157 can survive in this 
condition for at least 10 years. Specimens needed for 
experimentation can be removed from storage and given water then 
food to restore them to a usable state. 


Personnel working with an active SCP-157 colony are cautioned not 
to eat, drink, change clothing, or apply any substance to their body 
in the presence of SCP-157. 


Foundation MTF agents are authorized to administer Class-A 
amnestics to any survivors or witnesses of wild SCP-157 attacks. 


Description: SCP-157 is a previously unknown microscopic animal 
in the Tardigrade phylum, adapted to live on land as a predator. Like 
other Tardigrades, SCP-157 is extremely resistant to environmental 
damage, and can enter a cryptobiotic state when no food is present. 
SCP-157 normally exists as an amorphous mass composed of 
millions of individual organisms. In this form, it can slowly crawl and 
climb. 


SCP-157 colonies are predatory, and can attack insects and small 
animals by engulfing them and then slowly dissolving their prey with 
digestive enzymes. Humans and other large prey are not normally 
attacked directly by SCP-157 colonies, as they are too large to 
engulf, and long-term contact is necessary for SCP-157 to 
successfully feed. The organism has developed an alternative 
method of achieving such contact. 


SCP-157 colonies possess an innate telepathic ability. When in the 


presence of prey that is too large to directly attack, the SCP-157 
colony will use telepathy to present the illusion of something its prey 
wants to eat, wear, or apply to its body. SCP-157 is highly toxic 
when eaten; someone having done so requires antidotes to 
[REDACTED] and [REDACTED] within 20 minutes, as well as 
immediate gastric surgery to remove the portion that was eaten. 
When applied to human/animal skin, SCP-157 will produce an 
anesthetic to encourage prey to ignore pain and leave the organism 
in place. It then dissolves and consumes the skin within 30 minutes 
to two hours. Dead prey is rapidly consumed and SCP-157 will grow 
significantly as it feeds. When reaching a size of 5 kg, SCP-157 will 
split into smaller colonies that move off in search of new prey. 


When in the presence of two or more individuals, SCP-157 will have 
an inconsistent appearance — it may appear to be a food item to one 
person, and an article of clothing to another. This can serve as a 
warning and prevent exposure to the organism. 


Addendum: Note that due to its resilient nature, SCP-157 can be 
split into smaller pieces, boiled, microwaved, etc. and remain alive 
and dangerous. 


SCP-157 Capture Incidents: 


Incident 157-01 , found with extensive scalp damage after 
mistaking SCP-157 for a bottle of shampoo and applying some to 
his hair. Victim was apparently immune to SCP-157 anesthetic and 
began screaming, attracting the attention of his wife, who had been 
eating a snack. “It was the weirdest thing I’ve ever seen — he hada 
pastrami sandwich on his head, and it was eating HIM!” Victim 
treated for chemical burns; SCP-157 captured alive; victim and wife 
given Class A amnestics and released. 


Incident 157-02 , found partially consumed by SCP-157 in 
his office at Co., after apparently believing SCP-157 was a pair 
of socks and wearing them. Victim bled to death after feet and lower 
legs were mostly dissolved. 


Incident 157-03 Standard monitoring of police reports revealed a 
missing persons case where the investigating officers observed a 
couch slowly attempting to crawl towards the door of the victim's 


apartment. Couch initially sealed in area by police; Foundation 
agents later determined it to be an unusually large variant of 
SCP-157 and contained the specimen. Amnestics administered. 
Although large enough to attack humans directly, this specimen 
prefers to use its telepathic ability to attract prey, in the manner of 
smaller SCP-157 colonies. 


« SCP-156 | SCP-157 | SCP-158 » 


SCP-158: Soul Extractor 


Item #: SCP-158 
Object Class: Euclid 


Special Containment Procedures: SCP-158 is installed in 
Operating Theater 07 in Bio-Research Area-12. Personnel are not to 
be allowed in, nor is power to be supplied to the room, unless they 
have submitted, and had approved, a proper clearance requisition 
form to the Chief of Research Prof. —_. Personnel wishing to use 
the device must request and read the entire transcribed instruction 
manual in full. During the device's use, two (2) armed guards are to 
remain on standby outside the room at all times. In the event of an 
accident, all power must be cut to the room instantly, and guards are 
to examine the room carefully for any signs of misconduct. 
Misconduct will be punished in a manner decided by the Chief of 
Research on a case-by-case basis.