Take up the torch and prepare for battle! With disaster at the door, Simon and Betty debate on whether or not they should leave Ooo, save themselves, and start fresh . . . on Mars! At the same time, Marceline takes up the mantle of Vampire Queen to help save the Candy Kingdom-and all of Ooo-from the rampaging floods of the Blood Banks, but even she seems to be powerless against Magic Man's brand of chaotic magic! What other adventurers could possibly stand a chance? It's time for Finn to ace this test and become the greatest hero of all time-and hopefully stop the end of the world as Ooo knows it in an all-new, all-epic chapter from writer Nick Winn (Bloody Mary) and stellar artist John P Golden (Over the Garden Wall)!