Chapter 1: The Start of it all

Gravity Falls was known for supernatural events and mysteries right? Things that were unexplained? Well, now things get a little bit weirder as the plot thickens. Mabel and Dipper's relationship gets tested again after a certain someone possesses Dipper. Mabel has to make a choice, either save her brother by going into his dreamscape, which could lead to his death, or making a deal with Bill Cipher to free him.