XenoDimentio

Item #: SCP-XXXX

Object Class: Euclid

Special Containment Procedures: SCP-XXXX is contained on Site-██, within an 8x8x5 meter chamber with walls made of reinforced 20cm-thick steel. SCP-XXXX is to be monitored via 4 hidden security cameras placed in each corner of the ceiling at all times. A Class D personnel is to be provided to SCP-XXXX once every 4 weeks, to prevent another incident of [DATA EXPUNGED]. No personnel are to enter the chamber either while SCP-XXXX is without a host, or after 3 weeks of possession of a host. Deceased instances of SCP-XXXX-1 are to be removed only after SCP-XXXX has recently taken control of another host. When entering SCP-XXXX's chamber, rubber HAZMAT suits must be worn and secured.

Description: SCP-XXXX is a sentient, electrical parasite. In its natural form, it appears as a small, discolored cloud of discharged electricity. It propels itself through the air through unknown means, floating 1 meter off the ground. SCP-XXXX was discovered in █████, Canada, when an instance of SCP-XXXX-1 encountered and killed a group of campers, with one camper escaping to tell authorities. MTF [REDACTED] was dispatched to capture SCP-XXXX, and succeeded with two casualties.

Upon encountering a living organism, SCP-XXXX will violently assault the organism, attempting to surround the victim's head. The size and complexity of the organism in question appears to vary, but testing with multiple organisms has concluded that SCP-XXXX prefers physically strong hosts for its possession.

At this phase, SCP-XXXX will attempt to enter the organisms cranium via any orifices available, including nostrils, mouth, eyes, and ears. Upon entering the organism's skull, it is assumed that SCP-XXXX travels to the brain, engulfing it. At this stage, SCP-XXXX will begin to interfere with the victim's brain's electrical impulses, overwriting them with its own. This gives SCP-XXXX control over the host's body, which is then referred to as SCP-XXXX-1. As of now, there is no way of reversing this possession. As SCP-XXXX leaves no survivors of its assault, it is unknown if the host mind remains self-aware through this period.

After SCP-XXXX assumes control of SCP-XXXX-1, it will enter a period of hibernation, lying still on the floor of its containment chamber, as it adjusts to its new body. The time in which SCP-XXXX-1 awakens from this hibernation varies, from as long as 3 hours to as little as 10 minutes. After awakening from this hibernation period, SCP-XXXX-1 will rise up and begin pacing its chamber, and will continue doing so until it encounters another biological organism. Upon encountering another living organism, SCP-XXXX-1 will enter an alert state, backing into a corner. If approached, SCP-XXXX-1 will enter a hostile state, attacking the organism with whatever means that are available to it, until the organism is either dead or retreats. SCP-XXXX-1 does not appear to need any nourishment from food or water during the period of its possession. The reason for this is unknown, but has been theorized that SCP-XXXX 'feeds' SCP-XXXX-1 by directly providing its cells with the needed energy.

As time passes since initial possession, SCP-XXXX, through as of yet unknown means, will begin to mutate the body of SCP-XXXX-1. This mutation process has been divided into several stages.

After approximately 24 hours have passed since the possession, SCP-XXXX-1 will begin undergoing the first stage of mutation. In the first stage, the epidermis of SCP-XXXX-1 will begin to change in pigmentation, changing into a dark gray color.The face of SCP-XXXX-1 will become pale, while the eyes will begin to lose both irises and pupils. This does not seem to affect SCP-XXXX-1's vision.

During the second stage of mutation, occurring approximately 1 week after initial possession, SCP-XXXX-1 will begin to undergo a significant increase in muscle mass across the body, gaining increased strength and endurance, as well as a resistance to physical damage. The eyes of SCP-XXXX-1 will begin to change into a dark green color. The features of SCP-XXXX-1's face become noticeably angular. The senses of SCP-XXXX-1 are heightened, with noticeable improvements in sight, hearing, and smell, many times greater than the original host.

After approximately two weeks have passed since the initial possession, SCP-XXXX-1 will enter the third and final stage of mutations. SCP-XXXX-1 will begin growing large, bone-like plates across various points of its body. These bone plates are incredibly durable, able to deflect most small arms fire. The increase in muscle mass from the previous stage will continue, growing until it stops just short of the point of being to much of a hindrance to movement. This results in the host gaining incredible amounts of strength and stamina, and an almost complete resistance to pain. Horns will form on the limbs, spine, and head of SCP-XXXX-1, providing both increased protection to those areas and an additional method of attack. The eyes of SCP-XXXX-1 reach a solid, dark green color. The senses of SCP-XXXX-1 will now operate at maximum proficiency, many times greater than the original host was ever capable of doing.

Once the final stage of mutation has been completed, roughly 3 weeks after possession, SCP-XXXX will become much more active, seeking out and killing any living organism it finds with relative ease, due to it's vastly increased physical abilities.

Within one week of this behavior change, approximately one month after possession, SCP-XXXX-1's body will begin to fail, presumably due to the mutations putting too much strain on the organs. SCP-XXXX-1 will expire approximately 1 hour after its body begins to fail. SCP-XXXX will then leave SCP-XXXX-1's skull, and will immediately seek another host. If it cannot find another host within 24 hours, SCP-XXXX will seek the nearest available source of electricity and [DATA EXPUNGED].

Testing on deceased instances of SCP-XXXX-1 have confirmed that changes to the host's genetic template are the cause of the physical mutations, although how SCP-XXXX causes these changes is unknown.

Addendum A-1: On 2-3-20██, SCP-XXXX spoke for the first time using the mouth and vocal chords of its current host, a D-Class personnel, during its expiration phase.
Dr. █████ was on hand to confirm that it was SCP-XXXX-1 that spoke.
Although the voice was significantly mangled, the words were not difficult to interpret.
"It needs to be….stronger."
After stating this, SCP-XXXX-1 collapsed onto the floor of the containment chamber, expiring.

Future tests aimed at communication with SCP-XXXX are pending approval by Site Command.