Per 
Item #: scp-xxxx
Object Class: Euclid/Keter
Special Containment Procedures: scp-xxxx is to be kept under 24/7 surveillance via cameras, thermal imaging, and unmanned vehicles. The area it patrols is to be kept out of the eye sight of civilians. (the creature gets agitated when seen and it seems to have abnormal situational awareness)
It is to be given fresh livestock anything will do, preferably cows or pigs.
(if not given food it will take it among itself seek out and obtain food such as civilians, livestock, or anything that crosses its path)
Even though its classed as a Euclid that is mainly due to the fact that it is a creature with free-will and will seek food out if needs be and if the research is correct and it is in fact guarding the entrance to Underworld, Anything that could escape would instantly be classed as Euclid until proven safe or dangerous.
(due to it escaping and showing free-will)
The reason for the /Keter is because the creature does have specific requirements and all efforts to get close enough to capture have failed so far. This deems the creature too dangerous to come in contact with and is to be left alone and not disturbed by anyone and it's free-will also would help class it as Keter.
Description: scp-xxxx is a dog looking creature approximately 9.14 meters tall.
(the length has not been measured. As the animal does not allow anyone to get close enough to measure)
The creature has been related to Cerberus, The three-headed dog that watches the underworld and [DATA EXPUNGED].
The creature has 3 dog heads with red eyes and necks. The body, legs, and feet, are all dog-like. The only difference from the Greek mythology is instead of snakes
protruding from his back. He has parts of his spine that has split off and has grown up-wards, Out of the flesh on the top of the creatures back resembling spikes.
The dog's tail seems to be a serpent's tail. The spikes run from where the neck and head meet on each dog neck the spikes meet up in line with the creatures shoulders,
The line then runs down the dogs spine and down the tail, The spikes are not big and sharp but quite small and rounded almost like not spikes but like the spine itself.
People could say the dog would look malnourished if it was normal but this could just be due to the sheer size of the dog, It also seems to be where the creature walks the ground
such as grass and plants will [DATA EXPUNGED] behind the dog, The creatures full abilities are unknown.
The area it patrols is located near:
[DATA EXPUNGED]
(latitude: 37.926698344039536 longitude: 29.126687049865726)
Addendum: scp-xxxx seems to patrol a certain area with some researchers believe could possibly be the entrance to the Underworld, The creature which has now started to be called Cerberus by some staff is guarding it so no (what greek mythology calls) souls could escape which would be the creatures presumed duty.
On occasion drones have picked up sudden spikes of heat in the area the creature patrols almost like something very hot is coming out of something, At that point the creature almost instantly runs at a very fast pace towards the centre of the area it patrols where the sudden heat signature appeared from.
Using thermal imaging pictures were captured of a humanoid looking object in thermal imaging form coming out of something where the other heat signatures were captured coming out of, These pictures were captured on (██/██/████). Anything that remains out for longer than 2 minutes will be classed as scp-xxxx-1 and should not be allowed to leave the area from which scp-xxxx patrols unless ordered to directly by a higher authority..
