Per 
Item #: SCP-3879
Object Class: Euclid
Special Containment Procedures: Six Scranton Reality Anchors are to be maintained in a 50-meter wide perimeter surrounding Site ██ at all times. The SRAs must be checked monthly for signs of wear, and replaced immediately if necessary. All SCP-3879 manifestations are to be fully logged and submitted to the Site Overseer.
Description: SCP-3879 is a multi-dimensional anomalous apparition that began appearing at Site ██ shortly after a containment breach of SCP-████. The apparition vaguely resembles Researcher Eystosky, one of the researchers assigned to SCP-████ at the time of the containment breach who disappeared without a trace during the breach. The apparition appears to occupy both a single two-dimensional plane and our own three-dimensional reality simultaneously, with parts of it appearing fully three dimensional and other parts appearing infinitely flat when viewed from the side. The specific areas that appear two-dimensional vary between manifestations and randomly switch around during a manifestation, following no apparent pattern. Additionally, some areas of SCP-3879 will be obscured by a blue-grey spatial distortion, which seems to randomly move around the entity during a manifestation.
During an SCP-3879 manifestation event, the SCP will appear in a random location around Site ██, showing a preference for areas closer to SCP-████’s original containment unit. SCP-3879 will flicker into existence and remain motionless, staring directly towards magnetic north, and will not interact with or even acknowledge the presence of anything or anyone around it. SCP-3879 manifestation events typically last no longer than two hours. Hume levels during a manifestation event will drop all the way down to near 0 in an extremely localized area surrounding SCP-3879, no more than half a meter from its epicenter, and return to normal as soon as the event ends. During SCP-3879’s first two manifestations following the SCP-████ containment breach, localized reality warping was detected and resulted in the loss of Researcher Corren’s left arm in its entirety, after it got caught in a section of deteriorating reality and disappeared. Following this, six Scranton Reality Anchors were installed around Site ██ to contain the reality warping.
On the rare manifestations where SCP-3879’s mouth is non-distorted and in three dimensions, it can be seen silently mouthing out the same repeated phrase spoken in a different language each time. To date, eleven different languages have been reported as being ‘spoken’ by SCP-3879, two of which have yet to be identified. The languages are as follows, in chronological order: Mandarin Chinese, English, Swahili, Filipino, Sesotho, Spanish, (Unidentified), Hindi, (Unidentified), Yiddish and Arabic. The phrase has been consistently translated as follows:
| Left, right. Forward, backward. Up, down? Up down doesn’t exist. Up down does exist. Cannot move. Can move. It changes all the time. Time exists. Time doesn’t exist. |
Researchers Corren and ██████ have concurred that this phrase, along with the findings detailed in Addendum 3879-1, seem to indicate that SCP-3879 is currently caught between the second and third dimensions, and can only briefly appear in the third dimension. It is currently unknown how it facilitates this travel between dimensions, but it is suspected that Researcher Eystosky came in direct contact with the second dimension during the SCP-████ containment breach and was partially converted to a two-dimensional lifeform, unable to fully exist in either dimension.
Addendum 3879-1: During SCP-3879’s fifth manifestation, a D-class personnel was sent towards the apparition to attempt to make contact with it and communicate if at all possible. D-8874 was equipped with a set of standard-issue kevlar body armor, a two-way radio and a video camera. Below is a transcript of the communication between D-8874 and command.
Exploration Log 3879-1:
Command: Radio and video are green. D-8874, please approach SCP-3879 and describe what you’re seeing.
D-8874: Alright.. It’s uhh.. Kind of a hazy patch.. Blue-grey in color.. I can barely make out an arm, leg, and head about where they’d be on a normal guy..
[D-8874 moves around to SCP-3879’s front.]
D-8874: It seems to be saying something.. But I can’t hear anything.
Command: We’ve logged it mouthing out words before. Can you determine what language its speaking in?
D-8874: Uuuhh.. Maybe.. English? Or Spanish? Its mouth is kinda hazy and distorted right now.
Command: Are you feeling any effects on your mind or body? Headaches, fatigue, stuff like that?
D-8874: I got a slight headache right in the front of my brain, but nothing besides that.
Command: Pay attention to that and notify us if it gets worse. Please approach SCP-3879 and try to make contact with it.
D-8874: Alright..
[D-8874 does as instructed and inserts his hand into SCP-3879’s area of effect.]
D-8874: My hand feels kinda.. tingly. And.. oh god. My fingers are flat.
Command: Confirm that, please. Your fingers are flat?
D-8874: Yea, like completely flat. I can’t even see them from the right angle, they’re so flat.
Command: You can remove your hand from SCP-3879.
[D-8874 does as instructed.]
D-8874: Aaand my fingers are back to normal. They just snapped back into three dimensions as soon as I got about.. Half a meter away from the thing.
Command: Noted. Did you observe any other effects?
D-8874: Its face seemed kinda pained while I had my hand in. Like I was just slicing right through it.
Command: Noted. And its face is back to normal now?
D-8874: Mostly distorted, but yea. Still mouthing along.
Command: Understood. That will be all for now. Please return to base for debriefing.
D-8874: Gotcha.
[End log. D-8874 was subsequently interviewed by Researcher Corren, but did not reveal any new information, before being administered Class-C amnesiacs.]
Based on the findings in Exploration Log 3879-1, it appears that the area within SCP-3879 is in a state of constant flux between the second and third dimensions. Further testing on subsequent manifestations has shown the same results. Any objects introduced to SCP-3879’s area of effect are randomly made two-dimensional, and revert to three dimensions upon leaving the half-meter radius surrounding SCP-3879’s center.
