RIP-HBD

SCP-[UNDESIGNATED] upon first discovery

Item N^o: SCP-[UNDESIGNATED]

Containment Level: Keter

Special Containment Procedures: SCP-[UNDESIGNATED] is to be contained within three separate levels of containment, hence designated levels Alpha, Beta and Gamma.

+ Containment Level Alpha

Containment Level Alpha consists of a 5m-high electric fence surrounding SCP-5013 at a radius of 50km. Due to the highly dangerous properties of this SCP, special clearance has been granted from the ███████ government for the charge of the fence to be increased to 15A to ensure no breach of Containment Level Alpha by the general public. The 7854km² of airspace above the site has also been designated a no-fly zone by the same government, with constant radar monitoring by the ██████ military base.
The fence is also fitted with resistance detectors every 500m to indicate possible casualties or breach in the perimeter.

+ Containment Level Beta

Containment Level Beta consists of a 100km² containment zone. This zone consists of 20m-high walls with one 4-man watchtower every 500m along the top of the wall. These watchtowers may only be staffed with MTF personnel who have passed an interview and background check to assess their loyalty to the foundation.
These towers include:

• Four standard living quarters
• Four standard-issue Epsilon-11 rifles, each with 10 clips of ammunition
• Seven days worth of rations
• A long-range radio with an emergency line to both the main site and Site-019

The wall consists of reinforced concrete surrounding three 1m-thick titanium plates at the centre - each separated with a width of 1m - for a total width of 8m. All staff manning Containment Level Beta are to be rotated back to their facility every week, with a wait of one month in between postings.

+ Containment Level Gamma

Containment Level Gamma consists of a full-scale Foundation Base built around the base of SCP-[UNDESIGNATED]. The base is staffed by a selection of ████ MTF units, each outfitted with an Epsilon-11 rifle, 50 technical staff, 200 scientists and a smaller subject base of 150 D-class personnel. High security is in indefinite effect at the facility, and any D-class that disobeys will be immediately terminated.

Note: Barring the D-class, all personnel must have passed the aforementioned loyalty assessment in order to be admitted to the facility. Staff found to be in breach of this rule will be administered with a Class A amnesiac and redistributed throughout the foundation's various facilities, with the exception of the facility previously staffed.

The main containment method at the site is a large electromagnetic field generator - accompanied by several ultrasonic wave generators - stationed around the entrance of SCP-[UNDESIGNATED]. These must be constantly maintained by the technical staff at all times to prevent and repair damage. Both varieties of generator have been observed to have a severe, noticeable effect on the integrity of the "doorway" behind the entrance of the SCP. To protect against any severe breach of containment by multiple instances of SCP-[UNDESIGNATED]-2, the site has been issued with two ██-megaton nuclear warheads (designated "Last Resort") to assist in the destruction of the SCP or any possible incursions.

In the case of unsuccessful destruction of the SCP, or unsuccessful detonation of the warheads, 05-Command will designate the event the beginning of an XK-class end of the world scenario and begin the evacuation of human life in the surrounding 5,000,000km².

Description: SCP-[UNDESIGNATED] is an unknown species of tree, closely resembling a giant species of English Oak with no leaves and what appears to be a giant door embedded into the trunk at ground level. The surface of the SCP is covered in both bark and exposed patches of muscle-like structure. A red fluid slowly seeps from these damaged areas that, whilst resembling blood, has no impact on the health of the tree or any subject that comes into contact with it. The bark of the tree is incredibly resistant to all forms of damage, including kinetic damage via a 125mm armour-piercing shell and temperatures in excess of 2500^oC.
The door within SCP-[UNDESIGNATED] is now known to be composed of beryllium bronze, with carving in the surface resembling the marks commonly found on wooden boards. The door has no visible hinges and cannot be opened by force.
The "doorway" beyond the door in SCP-[UNDESIGNATED] appears as a black void within the tree, emitting levels of gamma radiation that kills all subjects in seconds. Organisms that appear from beyond the door bear an extremely high resistance to this radiation, in some cases reaching total resistance to radiation in excess of 5000Sv/hr.
Items that travel through this space completely disappear from all forms of detection and cannot be recovered. However, the "doorway" does accommodate the transmission of sound, allowing echolocation to be used to map the exit point.
The exit point seems to be identical to the landscape surrounding SCP-[UNDESIGNATED], with the exception of roaming packs of SCP-[UNDESIGNATED]-1 and SCP-[UNDESIGNATED]-2, often numbering in the thousands.

+ SCP sub-class incident 1

The first contact from beyond the door came with a massive electromagnetic discharge from SCP-[UNDESIGNATED]. Dr. ███ immediately ordered all MTF personnel to guard the door to the SCP. Approximately 5 minutes later the doors opened and SCP-[UNDESIGNATED]-1 ran out, closely followed by SCP-[UNDESIGNATED]-2. In both instances the doors were observed to give approximately 0.5m of clearance to each organism.
Dr. ███ ordered the MTF personnel to fire on the hostile SCP-[UNDESIGNATED]-2. As soon as this happened, SCP-[UNDESIGNATED]-2 began to retaliate, charging the main line of MTF head-on. SCP-[UNDESIGNATED]-2 sustained no visible damage from MTF gunfire and began killing personnel at a rapid rate, using both its claws and bone projectiles to kill over 90% of the facility's guards before jumping onto the roof of the facility and exiting the premises. Satellite surveillance detected SCP-[UNDESIGNATED]-2 running at speeds close to 40kph, in a westerly direction. SCP-[UNDESIGNATED]-2 was eventually terminated via an orbital strike from a gravitational bombardment platform, though [DATA REDACTED] shots were required.

Following the incident, the instance of SCP-[UNDESIGNATED]-1 was placed in containment and studied. It was from this study that the hyper-intelligent properties of SCP-[UNDESIGNATED]-1 were discovered. The initial specimen was later released to act as an emissary for their own species, though all instances of SCP-[UNDESIGNATED]-1 are still considered a potential threat due to their intelligence.

Following the first breach, multiple containment methods were trialled, their effect measured by the variable levels of gamma radiation produced by the "doorway". Electromagnetic field generators were found to be the most successful method, leading to the implementation of the current containment procedures in effect today.

Since the containment procedures were initiated there has been one other containment breach involving SCP-[UNDESIGNATED]-2.

+ SCP-[UNDESIGNATED]-1

SCP-[UNDESIGNATED]-1 upon first discovery

SCP-[UNDESIGNATED]-1 is a small, dinosaur-like biped, somewhat resembling a variety of Compsognathus. However, SCP-[UNDESIGNATED]-1 is solely vegetarian, with claws on the hands used solely for self-defence.

SCP-[UNDESIGNATED]-1 measures 1.4m to the head, and possesses two brains, located in the head and central chest. This gives SCP-[UNDESIGNATED]-1 high levels of intelligence, including the ability to communicate in their own spoken language and the languages of those they meet.

+ SCP-[UNDESIGNATED]-2

SCP-[UNDESIGNATED]-2 is an extremely hostile 6-legged predator that often hunts in the plains where SCP-[UNDESIGNATED]-1 feeds. As opposed to SCP-[UNDESIGNATED]-1, SCP-[UNDESIGNATED]-2 more closely resembles the canid family of animals than the reptilia family.

SCP-[UNDESIGNATED]-2 measures approximately 8m to the head, with prominent claws and a dual-jaw structure, similar to that of the Moray Eel. SCP-[UNDESIGNATED]-2 also features three eyes and armoured scales covering the upper half of its body, with fur covering the lower section that appears to serve the same function. On the rear section of the ankles of the front two legs are two protruding bone spurs that are covered in an unidentifiable fluid that acts as a potent neurotoxin to other species; SCP-[UNDESIGNATED]-2 appears to be immune to these effects. This spur is launched from the body via the rapid contraction of SCP-[UNDESIGNATED]-2's equivalent Anterior Tibialis muscle and is capable of piercing 5cm of rolled steel.

Whilst larger than SCP-[UNDESIGNATED]-1, the singular brain of SCP-[UNDESIGNATED]-2 is far less complex than that of its' prey. SCP-[UNDESIGNATED]-2 has been observed often fighting among their giant packs, and seem to operate on a pack-based system, with no visibly-defined territory.