"It never really existed to begin with. Something about... I dunno. A young god trying to build something they shouldn't have. It needed to be unmade to be set right." Crowley literally couldn't have been more thrilled to be released from that place. He'd existed in literal hell, and that was worse.

"My guess is when that happened, we ended up in the void because there was nowhere else to go... until the train picked us up." he shrugs, "I'd have rather gone back to earth, though. For the record."