Frozen Hearts (Jeff The Killer x Cutter!Reader)

Unraveling Secrets -Part 1-

~*~*~*No One's POV*~*~*~

        Slender Man just stood there, unsure of what to think, as some curious residents started to enter the room. (Y/N)'s appearance had gone back to normal as if she never changed. Her (H/L) white hair had gone back to a shining (H/C); her pale, blood-stained skin went back to her vibrant, clean (S/C) skin; her eyes changed back to her beautiful bright (E/C) eyes and she looked completely harmless. At first glance, no one would have ever expected her to be a demon's spawn who could potentially become a threat if ticked off. Slender still couldn't believe what he'd seen only minutes ago.
        He picked (Y/N) off the bed and pushed passed the Pastas in the room, ignoring their quiet murmurs, to walk into the secret lab underneath his study to run some tests. So many questions but so little answers. He NEEDED to find out what was going on and soon, before something terrible happens.
        Clothing her in a hospital gown, Slender then placed her on the cold operating table, much like the one in Eyeless Jack's room, and stuck an IV into her arm. He grabbed a syringe from a nearby tool table and drew some of (Y/N)'s blood. He then swabbed his wounded tendril for any trace of Zalgo's DNA and placed it in a thin glass slide, along with the blood sample. Slipping each slide into a two microscopes that sat nest to one another, he sat in his chair and looked between both to find any similarities.
        "Nothing about hers gives a red flag." He sighed, slightly irritated. (Y/N)'s DNA looked completely normal but slightly different from a  human's. So, she isn't human but shows nothing similar to a demon besides her demon form. He swiveled his chair around and leaned back, watching (Y/N). 
        "Papa? Are you in here?" A female voice called out. Slender panicked and quickly covered (Y/N)'s body with a blanket he used when he slept in here to escape the others for a night or two. "Hello? Papa?" The voice called out again.
        "Kitty?" He coughed. "Child, you know you're not supposed to be down here unless I summon you." The said girl walked out from behind the wall and looked shamefully at her father. Her real name was Clea Raymond Simmons but everyone called her Kitty because of Creepy Pasta form. She was adopted by Slender Man when he had found her in a hollow tree, covered in someone else's blood 10 years ago. 

~*~*~*Flashback to 10 years*~*~*~

        After another successful kill, Slender was walking back to the mansion when he heard soft breathing coming from his far left. He turned towards the breathing and slowly walked closer, tendrils ready to strike thinking it was another person dumb enough to look for the eight pages scattered around the woods not expecting it to be a small female child, that was maybe 4-5 years old, with a tail and ears dressed in a small medical gown. He retracted his tendrils A hybrid in my woods?
         "Hello child." The little girl looked at the tall being with her dull and lifeless violet eyes. She didn't seem scared, only exhausted as if she hadn't slept for days. 
        "Are you going to take me back to the humans in the white coats so they can dissect me?" She asked expressionless. Her tone surprised Slender and he put his large pale hand on her shoulder, understanding where she came from already. She had escaped a laboratory. The girl jumped under his touch and tilted her head. "Are you?"
        "No, child. I don't work alongside the humans. Can you tell me your name and where all that blood had come from?" He asked. She looked down and mumbled. "I'm sorry? Can you speak louder?"
        "The humans call me Subject 15 but my birth name is Clea Raymond Simmons... and the blood is from some of the men and women who ran tests on me... Are you going to kill me?" She answered quietly. Slender Man picked the small child up and cradled her in his arms.
        "No. You are a very rare specimen and I will protect you if it puts you at ease.Would you like to stay at my home, child? Many more people like you and I live in there." Clea simply nodded and rested her head on Slender's chest to sleep. To his surprise, she turned into a small kitten and snuggled closer to him. He held her closely to keep her warm and started back to the mansion, vowing to always keep Clea safe. 
        Slender Man eventually adopted her as his own when he saw that she got along well with most of the residents and always clung to him.