Pinkie wants revenge. The others are no longer her friends, they are now her victims. After an accident at an unattended party Pinkie hosted, poor Gummy is dead. Pinkie didn't think she'd ever smile again. Then Discord showed up. He told her about revenge, about how her old friends deserved to pay. Pinkie realizes he's right, so she throws a funeral up in a deserted area of Appleoosa, which she tells all the ponies was gummy's favorite place. Her guests will be staying in a large mansion with nopony around for miles. From the outside it looks nice, but what the ponies don't realize is that stepping through the doorway will put them into Pinkie's own hell-house.