This is SO GOOD and hilarious. Harry, Tom, Albus, Grindelwald, and the marauders are trapped in a Fae realm. They’ve time travelled from when they’re each in the 16-18 range. So in their respective universes - Harry has defeated LV, Tom has 1 Horcrux, Ariana is still alive, and the marauders are 5th years. Or maybe 6th.

Anyway it’s amazing and laugh out loud funny and you should read it. Cracked treated seriously.

http://archiveofourown.org/works/39323223