Object Class:

Euclid

Hazards:

Invulnerable, Aggressive, Omniscient.

Encounter Procedure:

Should SCP-4XXX breach containment, no attempts should be made to assault or physically contain/restrain SCP-4XXX. Should SCP-4XXX become aggressive towards a particular target(s), SCP-4XXX should be allowed to terminate said target(s). Under no circumstances should SCP-4XXX be insulted. No attempts should be made to witness the termination of a target of SCP-4XXX.

Physical Description:

SCP-4XXX presents with a humanoid form, white complexion, dark brown hair approximately 5cm in length, red and green plaid shirt, denim jeans with red suspenders, over-sized thick-framed glasses, white crew socks pulled towards mid-shin, and black rubber sandals. SCP-4XXX stands 162cm tall, and weighs approximately 65kg. SCP-4XXX is able to communicate in English with a nasally general American accent.

LOGOUT

Anomalous Properties:

SCP-4XXX-1:

SCP-4XXX attaches itself to a primary target, referred to as SCP-4XXX-1. If SCP-4XXX has not designated a primary target, or if SCP-4XXX has "reached a dead-end," it will designate the first human to make eye contact with SCP-4XXX as SCP-4XXX-1. The current SCP-4XXX-1 is Sergeant Chris █████.

SCP-4XXX terminates targets one (1) of two (2) ways:

Discretely:
The target will not be terminated if eye contact is made with the target. However, should eye contact cease, the target will be terminated in a number of ways. Methods of termination include:

Strangulation
Blunt force trauma
Drowning, even if a water source is not readily available
Fracture of the Th10 and C1 vertebrae caused by the target's undergarments being forced into meeting the target's cranium
Multiple non-lethal puncture wounds measuring 8mm in diameter, leading to lethal blood loss

Publicly:
The target is terminated regardless of eye contact. SCP-4XXX will employ only one method of termination: blunt force trauma.

SCP-4XXX features four (4) activation states:

Activation State	Activate Requirements	State
S00	SCP-4XXX is unprovoked	SCP-4XXX is docile.
S01	A subordinate of SCP-4XXX-1 breaches a relevant SoP	The member in question is terminated discretely by SCP-4XXX
S02	A target insults, attempts to restrain, or assaults SCP-4XXX	All humans within a ██m radius of activation are terminated publicly by SCP-4XXX.
S03	SCP-4XXX-1 breaches relevant SoP	The member in question, and all subordinates, are terminated discretely by SCP-4XXX. SCP-4XXX will then find designate the superior of SCP-4XXX-1 as the new SCP-4XXX-1.

SCP-4XXX Activation States Explained:

S00:
This is the default state of SCP-4XXX. While in this state, SCP-4XXX requires communication related to its interests. Any failures to pander to SCP-4XXX's interests are considered an insult, and can lead to activation state S01. During state S00, SCP-4XXX features normal human activities, including eating, sleeping, and waste evacuation.

S01:
Should any subordinates SCP-4XXX-1 breach any relevant SoPs, the target in question will be terminated discreetly. Following termination, SCP-4XXX will inform SCP-4XXX-1 of the target's infraction(s).

S02:
Should any target(s) insult, assault, or physically restrain SCP-4XXX, SCP-4XXX will terminate all subjects within a ██m radius of the initial infraction. SCP-4XXX will destroy any infrastructure necessary in an attempt to terminate its target, but will avoid structural destruction if an A* path is available. No material has been found that can contain SCP-4XXX during this activation state. All targets are to be considered KIA, prehumously, and no attempts should be made to defend any targets.

S03:
SCP-4XXX-1 breaches relevant SoPs. In this case, SCP-4XXX will discreetly terminate SCP-4XXX-1 and any subordinates of SCP-4XXX-1. The superior of SCP-4XXX-1 will become the new SCP-4XXX-1. All faculty terminated during this state are to be replaced immediately. Should this activation state occur, the Site Coordinator is to be alerted, and the O5 council is to be alerted.