(I apologize in advance, but I don't know what the outside of the SCP Foundation looks like. But if you know, please tell me so I can put it in.)

January 7th, 2539, 3:56:43 AM EST.

Two gunned men guarded a large black building with no windows, no outer lighting, and only one door. As a black vehicle approached, the two men looked over at it. One of the guards walked to the driver window, revealing a third person in the same outfit.
"We got someone who claims to be a member of the Zalink bloodline, but I got my doubts. Should I bring him in?" The man driving the vehicle asks.
"Sure. We'll neutralize him if he turns out to be a fake." The guard responds. The soon-to-be former driver left the vehicle and opened the metallic doors of the back to reveal Carter.
"Alright kid, step on out." The guard says to Carter. The boy reluctantly left the comfort of his seat and sat down at the edge of the vehicle before pushing himself onto the sand of the vast desert. The guard, who was a whole foot taller than him, put his arm around Carter's shoulders once he left the vehicle and slowly walked him inside.
"How'd you find us, kid?" The guard questions to Carter.
"Some cop gave a card to me with this adress." Carter responded.
"Huh...suspicious..." The guard says under his breath as he and the two accompanying him brought him down an elevator.
"You'll need to put these on slash in." One of the guards says to Carter, handing him two earplugs and a black blindfold with the SCP Foundation symbol on it. After looking at the objects, with great reluctancy, Carter pinched the earplugs before putting them in his ears. Carter then placed the blindfold over his eyes, tying a knot on the back of his head. As the elevator opened, the guard to Carter's left put his hand on the significantly smaller boy's back, guiding him through the halls of the underground facility. The four eventually came to a dimly lit room with one table and two chairs. The guard took out the earplugs and placed them in a cleaning receptacle next to the doorway. He then walked back to a now sitting Carter and took off his blindfold, slamming a file with almost nothing in it on the table.
"Scp 5853 A, AKA Mariah Carey. Takes the appearance of a dark skinned woman with black eyes and blonde hair in a Santa Claus costume." The guard, now turned interrogator described before looking Carter in the eye.
"This is what you saw, right?"
"Yes." Carter responded simply, not wanting to be reminded of the creature so vividly.
"Appears on the roof of 453, TDM Lane singing the popular Christmas song All I Want For Christmas Is You at about 2:59 AM with music emitting from an unknown source. Music builds up at 3:00 AM with Scp 5853 A creating a blinding light that disintegrates a parent but no one else, most likely the father." The guard says, looking back up at Carter, who now gripped his pants tightly with a look of anguish on his face.
"This is what happened?"
"Y-yeah..." Carter responded. The two other guards on the outside of the room looked to each other briefly.
"The stuff you just described is the work of the previously mentioned Cap 5853 A. The same thing happens to nearly every generation of your bloodline so far. We barely know anything about this thing other than its appearance and common actions. What we do know is that there's another piece of the puzzle." The interrogator says, placing another file on the table.
"Scp 5853 B. A regular double barrel shotgun with two peculiarities. One; the manufacturer is unknown. Two; it's the only known object that can harm Scp 5853 A. However, It's been shot only twice in the past to our knowledge. Both shots were taken by the children of the current generation. However, attempts to fire made by the parent never work. The two shots made by the children didn't harm Scp 5853 A enough to kill her, only to stun her for a few generations until her inevitable return. Based on this evidence, we've theorized that only the child of the generation *can* take the shot." The interrogator Explains to Carter.

(This isn't the end, but it's what I've written so far. Please comment on how to improve this chapter specifically.)