This takes place after the lumberjack' s ghost escape from Dipper at Northwest Mansion mystery. After the silver mirror broke, Dipper realized that Mabel is in danger. He had no idea how to stop mad spirit. The desperate boy had to bet on a last card he had left. Summon Bill Cipher. (I don't own Gravity Falls. It belongs to Disney and Alex Hirsh.) ( No ships) ( Maybe bad English) ( short chapters ) ENJOY