Per 
Item #: SCP-XXXX
Object Class: Keter
Special Containment Procedures:
SCP-XXXX-A and all instances of SCP-XXXX-1 are
Description:
Designation - SCP-XXXX-A1
Originating from a region near the Bolshevik Island in Russia, SCP-XXXX-A1 was apparently discovered in the remains of an uncovered dark age period village by civilian archaeologists. The findings were reported to foundation personnel by an agent working within the team, now deceased. See attached report.
SCP-XXXX-A1 is a distinctly human female, approximately 168 centimeters tall, and weighing approximately 85 kilograms, with distinctly white hair, green eyes, and an abnormally strong body.
Visually, SCP-XXXX-A1 is a perfectly normal human being. Internally, SCP-XXXX-A1 is the host of a neurological parasite of unknown origin, designated SCP-XXXX-A2.
Genetic testing performed on a sample taken from SCP-XXXX-A1 reveals her ancestry to be of early dark ages descent, indicating an age of roughly 1500 years. Further analysis shows accumulated mutations typically developed over time to have abruptly ended around the age of 23 years old, providing an age estimate for the time of infection.
Designation - SCP-XXXX-A2
SCP-XXXX-A2 is a large parasitic organism, which appears to have burrowed into the brain of the subject known as SCP-XXXX-A1. The discovery of SCP-XXXX-A2 completed the puzzle that is SCP-XXXX-A1 and SCP-XXXX-A3. The working theory is that some time early during the dark ages, SCP-XXXX-A2 came into contact with the then-uninfected SCP-XXXX-A1, and has since assumed total control over the host body.
Several previously undiscovered tendrils have been found in a networking pattern across the entire body of SCP-XXXX-A1, originating from SCP-XXXX-A2.
In an attempt to discover the purpose of these tendrils, researchers attempted to extract a sample from SCP-XXXX-A1 while incapacitated. The resulting events are recorded in the attached incident report, and all attempts to collect a sample of SCP-XXXX-A2 are now prohibited.
Designation - SCP-XXXX-A3
SCP-XXXX-A3 is an altered form of SCP-XXXX-A1, undergoing rapid regeneration and triggering the growth of a biological armor over SCP-XXXX-A1's skin, having several effects on their behavior and physical abilities.
The resulting effects are the disabling of the brain's strength inhibitor functions, nearly doubled muscle mass, and increased sensory perception and awareness. Notably, two arm-like appendages grow out of the upper back of SCP-XXXX-A3, ending with reinforced bone talons.
Addendum: The appendages that grow out of the upper back of SCP-XXXX-A3 are now known to be reproductive organs, see the attached incident report.
Located in the upper back of SCP-XXXX-A3 is a cavity containing a spawning pool for parasitic worms. Muscles lining the chamber and the route through the appendages draw the parasites through and forcibly inject them into an unwilling subject, along with a concoction of amnestics, pain killers, anesthetics, a coagulant, and a regeneration catalyst.
The effect is nearly instantaneous - the subject is incapacitated by the anesthetics, the coagulants almost instantly stop the bleeding, then the Amnestics then prohibit the formation of new memories for up to 30 minutes following the injection, and are known to wipe up to the last hour of the subject's memory. The pain killers and regeneration catalyst then trigger rapid regeneration of the injection site, almost completely and seamlessly healing the wound by the time the anesthetics wear off.
The subject is left with no memory of the incident and no indication anything happened aside from the damage to their clothing and the fact they woke up on the ground. Unbeknownst to them, they carry a developing instance of SCP-XXXX-1.
Addendum: [Optional additional paragraphs]
Recordings from within the chamber indicate that the instant the extraction device made contact with the tendrils, SCP-XXXX-A1 transitioned into an instance of SCP-XXXX-A3. There were no survivors. All attempts to collect samples from SCP-XXXX-A2 are now prohibited.
