Mabel continued to scream until Dipper put his hand over her mouth. "Shh, did you hear that?" Dipper asked. "No." Star and Marco replied at the same time. "Exactly. The banging stopped." Dipper was relieved but he shouldn't have been.
They heard footsteps leading down to the bunker under the Mystery Shack and in came Stan. "Oh Grunkle Stan am I happy to see you!" Mabel yelled as she ran over and gave her great uncle a hug. "Nice to see you too, shooting star." Stan said in a familiar voice."
"Grunkle Stan, are you feeling okay?" Dipper asked. "I'm feeling great. Why do you ask Pine Tree?" Stan replied to Dipper. "Pine Tree? Shooting Star? You're not Stan! You're Bill!" Marco yelled "Haha that's right Beauty Mark." Stan/Bill said to Marco.
Everyone stood in front of Bill/Stan in horror. Well, everyone except for Mabel. "Dude, I've seen this before. We just have to find Stan's weaknesses and we're home free!" Mabel said unamused. "Uh Mabel, I don't think Stan has a weakness." Dipper said.
"Everyone has a weakness. Marco's weakness is Jackie." Star said. "I remember when we were kids, Stan was terrified of heights." Stanly said. Mabel laughed weakly for a second. "Yeah, I uh...I helped him get over that fear." Everyone gave Mabel an angry look. Everyone except for Bill that is.