Per 
Item #: SCP-4987
Object Class: Safe
Special Containment Procedures: SCP-4987 must have two (2) guards around the perimeter of the interior behind the yellow tape during testing, one (1) guard must be stationed by the entrance at all times unless testing is conducted. Along with the guards the entrance must be sealed before and after entering and exiting. SCP-4987's entrances are sealed unless testing is authorized by Dr. ████ , during this time no one is authorized to enter the containment area. Once authorized by Dr. ████, subjects must enter attached to a cable to retreat to our dimension if anything goes wrong. All objects recovered from SCP-4987 must be locked in a containment cell unless otherwise stated by Dr. ████. Sentient biological entities must be kept in the containment cell while Dr. ████ researches it and decides what to do with it.
Description: SCP-4987 is a sandstone gateway that is 10.82 feet tall and 5.23 feet wide. Upon first glance the "portal" seems to be just a sandstone pillar with a very delicate painting of a desert landscape on it but looking closer reveals the landscape moving with a functional alien ecosystem.
Upon entering the subject may feel as if they have walked through water due to the pressure drastically increasing. Once in the subject is transported to the landscape that appears on the front of the "portal", upon re-entry to our dimension they will feel the pressure greatly decrease. Subjects who report being distressed report feeling "an emotional weight being lifted off my chest" upon re-entry. Subjects prone to depression report feeling happy, though Dr. ████ doesn't know how long the effects last. Dr.████ is still researching this and still does not have an explanation for it, which is the only reason Dr. ████ is still researching it.
The interior of the "portal" seems to be infinite dimension which leads Dr. ████ to believe that there may be an infinite amount of ecosystems they haven't encountered yet. The surface of the ecosystem , or where the "portal's" entrance leads,has been found to be made of biological matter that has been made into a fine grain, while the flora and fauna have been reported to be from what Dr. ████ tells us is not biological matter. The ecosystem is believed to be passive disregarding the Sentient beings that have left through the portal.
Addendum SCP-4987-A: The first and believed to be the only entity to exit the portal; SCP-4987-a appears to be a 15 foot pale figure, it seems to have an absence of a mouth, ears, and nails.It appears to be cloaked in its own exterior, it's eyes seem to be hollow holes in it's face. It's arms seem to be able to grow and shrink at it's own expense allowing it to reach something high above him, it has even been reported to add joints to it's additional limbs. It's been reported to put an opaque substance it excretes through its skin on its face where it's mouth would be as some wort of smile. It was reported to greet a subject inside the "portal" during experimentation and even led them subject back to the entrance. It seems to speak in a telepathic dialect, every subject who hears it speaking reports to hear it speaking their first language. Although it can speak verbally it takes to telepathic communication
This interview occurs with SCP-4987-A and Dr. ████ regarding the "portal" and the ecosystem within it
Interviewed: SCP-4987-A
Interviewer: Dr. ████<Begin log>
Dr. ████: Please state your name for the record.
SCP-4987-A: I do not understand what you inquire.
Dr. ████: What do they call you?
SCP-4987-A: What does who call me?
Dr. ████: Never mind that, let's get to the interview. Now, how long has that sandstone structure been in there.
SCP-4987-A: As far as i can remember.
Dr. ████: And how far would that be.
SCP-4987-A: In human years? Around 2 million human years ago, though it just lead to your dimension around thirty-thousand human years ago.
Dr. ████: And is it the only "portal" in your dimension?
SCP-4987-A: No, there are millions. You see, our dimension does not end, you will see this if you continue to explore it.
Dr. ████: Enough on your dimension, we'll get to that again later. Are there more of you?
SCP-4987-A: In human terms no, but there are more creatures like me and are of the same species.
Dr. ████: What do you mean "human terms"?
SCP-4987-A: Well you humans seem to think that you're all unique, and while you may be unique in looks that's where your uniqueness ends. You see, you fail to see that you all live the same lives, Go through school and absorb as much knowledge as you can to then go on to a job where you work your body to the grave while only thinking about money. Money is all everyone thinks about, even when you're family plans your fune-
One of the guards takes their gun and shoots them self through the temple
SCP-4987-A wipes the blood off and claps
SCP-4987-A: See he understands, no matter what you do you can't escape this nightmare.
Dr. ████: OK that will conclude our interview, thanks for your time but i should go no-
SCP-4987-A extends his arms to grab the last guard and Dr. ████
SCP-4987-A: NO YOU'RE NOT GOING ANYWHERE! Sit please so we can further discuss what you may call "bleak subjects".
Dr. ████: OK just let go of us.
SCP-4987-A: I shouldn't trust you, but not all humans are the same so don't pull any tricks on me.
Dr. ████: OK I'll comply just trust me, please.
SCP-4987-A lets go of them when the last guard shoots it which causes SCP-4987-A to grab him and retreat back through the portal.
Dr. ████: GUARDS!
The interview then takes a sharp cut and ends.<End Log>
Aftermath of the interview with SCP-4987-A: After the interview ended guards reported the room as smelling putrid, while Dr. ████ said it smelled "fine". On 2/15/████ (or the day after the interview) Dr. ████ was hospitalized with rapid growing cancer, 2/18/████ he was found cured and lost all symptoms, the Foundation still cannot explain this. No other entities have left through the "portal" since the interview.
