Per 
1. The [REDACTED] cave in the Isle of Skye home to SCP-5266
Item # SCP-5266 "Blood Bastion"
Object Class : Euclid
Level 4 Clearance Required
WARNING IF YOU DO NOT HAVE LEVEL 4 CLEARANCE YOU WILL BE FORCIBLY ADMINISTERED AMNESTICS
Description: From the intelligence gathered it seems SCP-5266 is a blood red muscular being of approximately ten feet that wields a makeshift bone hammer. It appears that being in close proximity of SCP-5266s' scream causes the listener to become clinically insane but this is just theory as maybe it was prolonged exposure to the creature that caused the insanity. It seems that SCP-5266 is defending some sort of pyramidal object but we plan on sending drones to investigate the object in depth.
2. Drawing of what we assume to be "SCP-5266" by asylum inmate "Joel Edmonds". Note it is missing fangs that Subject C obversed.
Special Containment Procedures: SCP-5266 is located in a cave in the Isle of Skye, Scotland. The cave entrance is to be barred with —heavily strong metal so that SCP-5266 cannot escape. The use of the best metal is required as the foundation currently do not currently know the full extent of SCP-5266s' strength or properties. There is a coded door that only on staff researchers will be aware of. This is so further tests can occur but the door must be as strong as the rest of the seal.
Notes: SCP-5266 was discovered less than a month ago residing in a cave in the Scottish Isle of Skye. The foundation noticed a large spike in asylum inmates coming from the area, some of which mentioning "the cave" and "the monster with the blood red skin". Naturally the foundation assumed this must be an SCP so Dr Wyvarian procured a group of two other researchers and three D class to investigate the rumours.
Upon arrival to Skye a research camp was set up in the forest and laid out a map of all caves in the area. D Class were dropped off to each cave with only a two way radio in hand and were instructed to tell us if they saw anything bloody or anomalous.
The first three caves searched yielded no results and approximately five minutes after the first D class entered the fourth cave contact was lost. The second D class was ordered into the cave and told to alert us of everything in the cave.
"There's a lot of bones here, don't recognise the original animal
"WAIT I SEE A GLOWI…" THWAK.
"Subject B confirm your location"
'Silence'
"SUBJECT B" yelled Dr Wyvarian.
'Sigh' "Send in Subject C"
Subject C approached stealthily
"I hear crunching noises"
"Wait I see something, OH MY GOD I CAN'T LET IT HEAR ME. Thing looks 10 foot tall and really really muscular WHAT THE FUCK IS THAT"
"Focus please" said Dr Wyvarian
"Sorry sorry I can see Subject B. It's eating him, its holding a weird blunt instrument. A bunch of different bones stuck together with skin"
"OH MY GOD HE TURNED AROUND, THE WHOLE THING IS AS RED AS BLOOD AND OH MY THE FANGS" loudly whispered Subject C
"Fangs?" Asked Dr Wyvarian.
"Yeah one fang each end of jaw with tons of razor sharp teeth in between. I'm coming out"
"Negative, keep investigating the cave" commanded Dr Wyvarian.
"FINE"
After ten minutes of exploring Subject C contacted the researchers about an unknown object.
"I see a weird relic thing? It's hard to describe. Like a human sized square based pyramid with weird glowing symbols, SHIT ITS COMING"
Contact with subject C was lost for a minute until he decided to abandon the mission and leave. Subject C exited the cave and the researchers were mad at him for abandoning the mission and yelling profusely at him when he suddenly held his hands to his ears.
"I CAN'T UNHEAR THE SCREAM"
"What scream?" Dr Wyvarian asked.
A few moments passed when Subject C started babbling about the cave and the creature, much like the inmates at the asylum.
Footnotes
Only the on site foundation personnel should be aware of the code to the door. Dr Wyvarian is the only one to be trusted so she must change the code after the previous research team has concluded
Licencing
1, https://search.creativecommons.org/photos/18630aec-caec-4ac6-80fd-cd094756014e
2. https://search.creativecommons.org/photos/d248e9d0-8ead-409d-ae06-2e7a4cd1c6ea
<SCP-5265 / SCP-5266 / > SCP-5267
