The Beginning of the End [ Gravity Falls + Phineas & Ferb + Doctor Who ]

Bill Cipher

Ford and Dipper searched and searched every day for the wormhole. On the 6th day of search they were tired, so they went to the Mystery Shack to rest. They were sleeping when Ford heard Soos talking to nobody. He went to look and he saw...Soos talking to the wormhole!
« What?!» screamed Ford. «The wormhole was here under my nose the whole time!»
«That's not a wormhole. It's a living ball. It loves to eat. I gave him all of the food off the house» answered Soos.
«Dipper! Come here. Now!» shouted Ford.
Dipper woke up and ran to the kitchen.
«What's going on?!» asked he.
«The wormhole.»
Suddenly the wormhole started getting bigger and bigger and Bill Cipher came out.
Bill Cipher. He has been running around in Gravity Falls since he worked with Stanford Pines over thirty years ago. He is known for cheating on everyone in town including Ford. Now he is back in the real world. That means ... the beginning of the end has begun.
«Hello Stanford.» said Bill.
« I know you!» said Dipper.
«Yes, yes. I know you too. See you later Stanford. Well there's not going to be a later so... see your dead bodies later. Hahahaha!» laughed he with his screechy voice.
And he disappeared.