When Princess Bubblegum invents a time machine, Finn and Jake have to promise to only use it in case of emergencies! But what happens when everything is an emergency?! Also featuring the backup story “Level 99”!
Ryan North's recent work includes the nonfiction books How To Take Over The World and How To Invent Everything, the semi-fictional graphic novel adaptation of Kurt Vonnegut's Slaughterhouse-Five, and the so-far-fictional Unbeatable Squirrel Girl series for Marvel. He's a multiple New York Times bestseller whose work has been translated into 16 different languages to date, and as a linguist, he's very happy about that. He lives in Toronto, where he once messed up walking his dog so badly it made the news.