Per 
item #: 4156
Object Class: Keter
Special Containment Procedures: SCP-4156 is to be contained in a 15m x 15m x 18m acid and heat resistant titanium reinforced steel containment cell submerged in water no warmer than 1° celsius.
Knowledge is to be released about SCP-4156 to no more than 10 Class A personnel, (excluding 05 council members) 17 Class B personnel, and 5 Class D personnel at any given time.
Under no circumstances is there to be any bodily fluids excreted in a 30m radius of SCP-4156.
Any personnel under Class A may not have any verbal confrontations with SCP-4156 unless given direct approval from 05 members.
In the event of a containment breach, 8 separate backup generators are to power a tesla gate surrounding the containment cell.
If SCP-4156 is able to bypass the tesla gate, nuclear warheads Alpha-12 and Zeta-2 are to be armed and detonated as soon as possible, having mobile task forces Alpha-1, Epsilon-11, and Theta-90 online for retrieval
In the unlikely event that SCP-4156 is still intact after nuclear detonation, an XK-Class end of the world scenario response is to be issued immediately. All personnel Class C and under are to then attempt re-containment of SCP-4156
Description: SCP-4156 is a highly resilient, vaguely arachnid entity made up of human-based bodily fluids, roughly fifty (50) humans, fourteen (14) cattle, one thousand six hundred and thirty two (1,632) varying species of rodent, primarily rats, and several unknown species. It stands at 10m in height and can morph into any object relative to its size.
Any bodily fluids in a 30m range of SCP-4156 will assume, which can only be described as a "conscience", and move towards SCP-4156. No current means of stopping these masses have been successful. Every time SCP-4156 gains a gallon of fluids, its effectiveness radius increases by 5m (original effectiveness range: 15m. See addendum 4156-C)
SCP-4156 is capable of speech via a tendril consisting of mostly bone and a central nerve injected directly into a Class D's temporal lobe which comes out of SCP-4156's thoracic cavity. This also allows SCP-4156 to gain all knowledge and memories of the individual. At the end of the interview, Class D is the pulled into the thoracic cavity where SCP-4156 enters a "feeding" state in which the Class D is subjected to stomach acid until the personnel is fully dissolved. This adds to its overall mass (approximately 80kg)
Every 1 out of 3 personnel will be injected with a fertilized egg of unknown origin via tendrils that sprout of SCP-4156's mouth. The eggs will then hatch after 24 hours into SCP-4156-B. SCP-4156-B is an exact replica of the person except SCP-4156-B is missing the iris in the right eye.
SCP-4156 will remain docile until presented with another animal in which it will kill it in the most gruesome way possible. (see addendum 4156-A) any instances of SCP-4156 are to be terminated immediately via incineration.
SCP-4156 was first located at site██ on █/█/████ exiting a "pocket dimension" which is shared by SCP-106. Whether these two have any correlation to each other has not been determined. Unlike SCP-106, SCP-4156 cannot open gateways to the pocket dimension but will actively seek out viable options
SCP-4156 is to never enter this pocket dimension.
SCP-4156 creates large amounts internally (1,941°K) which is released through "air vent"-like flaps on its abdomen (released temperature: 1,611°K) during ventilation, SCP-4156 will become docile until aggravated or after process is over (see addendum 4156-B)
The spines on SCP-4156's limbs effect all photography devices, causing the recordings to seemingly not exist despite all attempts of recording.
Addendum 4156-A: After the third interview, SCP-4156 creates two SCP-4156-B's. SCP-4156 then ingests one and enters a state of "low brain activity". Security Officer ████ and Pvt.████ enter containment and SCP-4156-B instantly enters a hostile state, removing Pvt.████'s left arm and liver as Officer ████ opened fire on SCP-4156-B. SCP-4156 is unaffected by high-caliber rounds. A pyrotechnician is brought in and it is revealed that fire is most effective against all instances of SCP-4156-B.
Addendum 4156-B: Claiming that it was overheating, SCP-4156 opened its "vents" and released pressurized gusts of wind reaching speeds up to 251km/h and heat up to 1,811°K, melting the inner wall of the containment cell. It was negotiated that while repairs are being made, it would not harm any personnel at the price of accessing one Class B personnel of its choice.
Addendum 4156-C: During retrieval, SCP-4156 killed two Containment Specialists and injured another three. SCP-4156 gained an estimated total of 2.1 gallons of blood, increasing the effectiveness range by 10m.
Interviewed: SCP-4156
Interviewer: Dr.████
foreword: basic questions for a basic understanding of what SCP-4156 is.
<begin log. 0400h
Dr.████: now, to get things started, why don't you tell us your origin.
Dr.████: you're asking for a different host?
SCP-4156: no, just stating the facts.
Dr.████: okay… what is your name, then?
SCP-4156: I have many names, Wendigo, Charybdis, Chimera, but the one that stuck with me the most is Nyarlethotep. Named by Howard Phillips Lovecraft himself. I am quite proud of that.
Dr.████: interesting, what do you think of the foundation?
SCP-4156: an annoyance
Dr.████: and humanity as a whole?
SCP-4156: I revolt in disgust every time I see one of you inferior beings.
Dr.████: what will you do to D-379 after the interview?
SCP-4156: D-379? you name them like us? (sighs) let me show you.
SCP-4156 proceeds to pull D-379 into its thoracic cavity.
Dr.████: oh… God damn it.<end log. 0422h
closing statement: little progress was made, but progress nonetheless, future interviews are likely.
