Per 
Scp 8181
Object Class: Euclid
Special containment procedures:
It is only partially contained due to health reasons of the staff. It is contained by a 10 m high 1x1km fence which is barbed and electrical. It is never to be interfered with even in a xk-class scenario. If anyone is caught interfering with the SCP or its containment they will be terminated on sight by one of the on site researchers. If a containment breach was to occur
A nerve gas will be released to slowly kill off the tree. Any researchers in the area are to evacuate and if any are caught trying to stop the nerve gas they will be terminated.
Description:
SCP-8181 (also known as ‘The Everlasting Oak’) is an -— variety of - tree that was first discovered in the -— region of -——. The first sighting of this anomaly occurred in 708AD by Nordic explorers, with stone tablets engraved with ancient cipher roughly translating to “Log of poison”. Although this engraving somewhat explains the properties of this ancient tree, no one has reported activity from it. But, ecologists examining the tree have suddenly passed out and died with no apparent cause. Safety procedures have been placed warning site researchers no to come within a 15m radius of the tree. Any animals that have come in a 15m radius of SCP-8181 will experience extreme episodes of epilepsy and PTSD, then will proceed to attempt to kill any living thing it encounters, and then make attempts of self harm or suicide until eventually, death ensues.
Test log:
D-class personnel are instructed to approach SCP-8181: Approach with caution.
The D-class approach SCP-8181.
They are instructed to make physical contact with SCP-8181
D-Class: What is this made out of?
Dr -: Not sure. Keep making contact.
D-Class: Will this hurt me?
Dr -: [redacted]
D-Class: The surface feels rough, but the shape of it circumference is abnormally circular.
Dr -: Ok, I think that’s enough. Report back to [redacted]
D-Class: No, i want to investigate further.
Dr-: What?
The D-class lost all connection and has since been deceased.
Addendum:
Dr - has been terminated due to violations of the foundation and the containment procedures. No more testing of this scp is to be carried out without approval of 1 o5 command.
SCP-8181-A
Class: Keter
Type: Surveillance
AKA: The flow
Description:
SCP-8181-a is a humanoid entity which is reported to been seen in a 20 meter radius of SCP-8181. It has reported to be watching the tree and anyone to get in a 20m radius of SCP-8181 has been seen choking to death by SCP-8181-a if it is present. He is constantly floating and has a similar appearance Scp 096 but is made out of black gas. Due to its nature it is impossible to contain but we have managed to successfully establish task force Tau-4 to keep a constant watch on scp-8181-a.
