Per 
SCP-4902
Object Class: Keter
Special Containment Procedures: The SCP-4902-1 is to be contained inside a box made of titanium and is not to be opened without approval of atleast 5 members of O5 council.The SCP-4902 is not to be touched or opened without approval of atleast 5 members of O5 council. Any attempt will result in immediate termination on the spot. IF ANY ATTEMPT TO OPEN THE DOOR IS SUCCESFUL, THEN THE ADMINISTRATOR AND O5 COUNCIL ARE TO BE WARNED FOR POTENTIONAL PATMOS XK-CLASS END-OF-THE-WORLD- SCENARIO.
Description: SCP-4902 is a door with the key being SCP-4902-1. They were found in ███████, ██████, at 13/6/19██ in almost perfect state. The true nature of SCP-4902 was not known at the time. Experiment was conducted at Site-██ located in ██████, ████████.
Experiment #1:
Several D-Class Personnel were ordered to open SCP-4902 with SCP-4902-1, which was succesful.
When the door opened, there was spirally purple like substance which was measured to be less than 1mm wide. D-Class personnel were then instructed to enter inside so called "portal" by one of them. They accepted and entered.
When they entered they only 2 out of 5 dispatched D-Class personnel returned after 4 hoursand were heavily injured and one of them died 2 hours after return. The other one survived with minor head injuries and did not suffer any brain damage.
Then the official interview was conducted with the survivor.
Interviewer: Dr. ██████
*Interviewee:** The survivin D-Class Person
Dr.██████: Hello ████, how have you been?
████: Fu*kin' terrible, thank you very much.
Dr.██████: Can you describe what happened after your entered the "portal"?
████:… yea I can. So after we entered the portal, we ahve concluded that we are in temple of some sort… now that I look at it again… It was not temple… more like…
Dr.██████: Can you describe what did you saw?
████: Yea it was more like… some osrt of station, simillar to the site we are in, but its like the "invasion" is preparing. And then we saw some like bird/wolf hybrid species and they started talking in some language that we obviously we didn't understand. After no response from our side, then… <heavy breathing>
Dr. ██████: What happened sir… Are you okay sir?
██████: <heavy breathing> No… nononononono <screams>
Dr.██████: Quickly, get the [DATA REDACTED]
[DATA EXPUNGED]
Interiviewer's Note: During the end of the interview, Survivor's eyes have turned [DATA REDACTED], after that, the survivor dies.
Addendum #1:
It is a fact that behind SCP-4902 is world to another world/dimension that has another race of species presumably with more advanced technology waiting for another opening of SCP-4902 to start invasion of Earth and possibly extreminate humans and all life on earth. It is still speculated but they may not want an invasion and it was probably mistake on survivor's part. Still, SCP-44902 was immediately upgraded to Object Class Keter. Futher experimentatiin was prohibited also due of risk of [DATA EXPUNGED]
Addendum #2:
It was also discovered that SCP-4902 is also exactly ████ years old, on which theory was made that SCP-4902 was [DATA EXPUNGED]
