Q: In Solo Fluxx, if I win with a Goal that requires a Keeper, and a Creeper which is attached to some other Keeper, does the attached Keeper also have to be discarded when I claim the Goal?

A: Attaching Creepers stay with their Keepers until they reach the discard pile, so the “host” Keeper must be discarded along with its attached Creeper when you claim a Goal that needs that Creeper.