Run | A Youtube/Gravity Falls Crossover

Bill's P.O.V

Pine Tree brought some new toys! Perfect!

Let me nickname them.

The black-haired one: Brawn

The brown haired one: Energy

The sandy-haired one: Duck

I observed them, but something was off about Energy and Brawn. Time to enter their minds! I flew down, undetected, and turned it to the mindscape. Everything turned a monochrome gray, and Pine Tree balled his fists.

"Bill..." he muttered. I came down in front of him, "Is that anyway to greet me, Pine tree?"

"Get out of here!" Dipper growled.

"Now, why should I do that?"

"Because, I said so,"

I rolled my eye, "Yeah, I'm going to listen to a puny 12 year old, when I'm an all powerful dream demon."

"Dream demon?" Brawn questioned silently, staring at me with wide eyes.

I floated over to him, and circled, "Yeah, kid. Oh, by the way, I'm going to check your mind, Brawn." I turned to Energy, "You too, Energy,"

"Brawn, Energy?" Energy was confused, then glared at me. "Wait, why?"

"Because!" I went into his mind. I blinked, and looked around. Everything was full of kindness, love, and determination. I could see everything. Euch.

Then I saw something. There was a cage in the corner, dark tendrils coming from it. Etchings were carved on the walls; things like "HAHAHAHAHAHAH", "LET ME OUT", "REVENGE", "DEATH, MURDER, DESTRUCTION, INSANITY", and "KILL THEM ALL"

I would have smiled if I had a mouth. Now this was interesting. I floated over and looked inside the cage. It was just dark, as if a tarp covered the inside.

How strange.

I stared into it, trying to see anything. Two eyes opened in front of me, iris' glowing a toxic green.

I tipped my hat, "Hello,"

"Who are you?" a voice hissed back in a thick Irish accent. It dripped with insanity, and the eyes betrayed it.

"Why I'm Bill, Bill Cypher. Dream demon and torturer!" I laughed, "Who are you? Energy's persona or something?"

"Energy? Sean? Jack? That doofus?" the voice chuckled, staring intently at me. "I'm Anti, mind letting me out?"

"Why should I?"

"Since your a demon, and I am too-"

"Your a demon? What kind?" I inquired.

"Possession Demon, now, will you let me continue?"

"Yes,"

"Since I'm a demon, and you are too, we both want the same thing, right? So, let me out, and maybe my good buddie Dark as well?"

"Dark?"

"Mark's little Demon,"

"Brawn?"

"I guess; anyway, let me out?"

"Well... mind getting Pine Tree for me?"

"Sure," Anti hissed, "Let me out,"

"Fine," I flicked my wrist lazily, and the door opened. Darkness poured onto the ground, and a figure stepped out. It stretched, joints popping, and stared directly at me. It looked the same as Energy, except for a few things. It had shark-like teeth, bright green eyes, pointed ears, and claws.

"Thanks? Any knife?"

"No, you have claws,"

"Please?"

"Fine..." a knife appeared in his hands, and he smiled crazily at it.

"Thanks, friend." Anti hissed, and devolved into black mist.