[COMPLETED] This was Dipper and Mabel's 3rd summer in Gravity Falls. They where both sixteen years old. It started out as a pretty normal summer until the Pines family started finding evidence of Bill's existence. Is Bill really back? What is he planning? Find out in my story! Hope you enjoy

Book 1 in a 3 Book series... Dipper and Mabel Pines are back in Gravity Falls for another summer. They may be sixteen, but the thrill of the mystery is still there! For the past few weeks, Dipper has gotten little to no sleep. Ever since returning to the Mystery Shack, his dreams have been tormented by a certain dream demon... One day, a stranger arrives at the door of the Mystery Shack. Yellow and brown hair, a triangular eyepatch over one eye, a grin on his smug face, the stranger lets out a laugh. "Long time no see, Pine Tree!" Having somehow been trapped in human form, Bill Cipher makes a deal with Dipper... Bill drives Dipper to the brink of insanity with his violent humor and overall aggravating personality, but there's something there making it impossible for Dipper to deny him help, and it isn't just the deal they made... A/N: The style of Human Bill in this story is Life-Writer's style! So...yeah! Just so you know, and so I don't have to try and describe him!

After weirdmagedon, Dipper and Mable leave to go home, it's the last day of school all ready and the mystery twins soon find out they are going BACK to Gravity Falls, Or.

Another plot twist that I came up with for the final episode of Gravity Falls, Weirdmageddon. Instead, Dipper is the one to do the suicidal mission to take down Bill by himself. As said demon traps his family (Ford, Stan, and Mabel) in the triangular prison. Bill captures Dipper and notices that the deal they made back then during the sock opera still exist. Dipper is still Bill's puppet and has access to his mind. The demon finds out that Dipper has been keeping alot of secrets after the sock opera incident. I do not own Gravity Falls sadly. Billdip, don't like don't read.