(Parallel to the Time Traveller's Pig and Blendin's Game)

Wendy reluctantly accepts Soos's invitation to his birthday party after she's already invited Tambry over for a sleepover. When Wendy's attitude gets in the way of her own enjoyment, a strange woman appears at the party. . . Finding herself stuck in an inter-dimensional goose-chase (or should I say goat-chase?), can Wendy make it back to Soos's birthday party on time?

(Warning: THE FEELS ARE COMING)