File:GFLL DDI! Keyhole and 8 Ball.png

A scene of the tale "Don't Dimention It!", from Gravity Falls: Lost Legends. Showing Mabel falling through Dimentions, one of them, being the Nightmare Realm, in there, we can see Keyhole and 8 Ball, angry, next to a statue of Bill that has the label: "He was the wrost"