This deluxe hardcover collects Adventure Time issues #30-34. Finn is about to fall headfirst into an adventure so intense, he'll never remember it! He tries to take on the Mnemonoid only to wake up in the future with no recollection what has happened in the time jump! With his pals Jake, Princess Bubblegum, and Marceline, Finn must remember how to beat this mean dude before he forgets everything else!