Chapter 1

Dipper and Mable are finally moving back to Gravity Falls to visited there uncles, Stan and Ford Pines, but this time there going to be living with them from now on. The twins are 18 now and allowed to stay, Dipper is supper excited to finally solve all the mysteries of Gravity Falls but a certain triangle dream demon reappears but not in his usual triangle form this time he's a human 18 year old as well. Will Dipper help Bill? or will he leave the demon alone with no knowledge of how to turn back into his demon form and no understanding of how to survive alone?

Also Bills past will be revealed as to why he calls himself William in his human form.