"The most charming cannibalism novel I've ever read!" —Sarah Beth Durst, New York Times bestselling author

In this delightfully cozy and creepy YA romp, a cave monster masquerading as a search-and-recovery guide intends to find and eat a lost wizard—but catches feelings for him instead, perfect for fans of TJ Klune and Andrew Joseph White.

Theory has a monstrous secret. He isn’t an ordinary search-and-recovery guide at Fiendworld, the world’s premier magical-sinkhole-turned-amusement-park; he’s a cursed, human-eating mantis. But not to worry—he has an excellent solution for his particular diet. Whenever he’s asked to retrieve the corpse of a lost adventurer, he simply snacks on a finger or two. No harm done.

That is, until he’s given his latest assignment: recover the body of park management’s missing son. Great. Yet another foolish wizard who got lost adventuring, and this time the direct descendant of the very person who cursed Theory in the first place. Worse, when Theory reluctantly sets off on the search, he’s shocked to find the wizard somehow still alive.

Nim—the wizard in question—has no desire to be rescued. He’s on a mission to the bottom of the sinkhole, and refuses to return to the surface before he gets there. He may be a subpar wizard, as his parents constantly remind him, but he’s got a positive attitude, an enchanted backpack, and now a mysterious rescue worker to recruit to his cause! Even though said worker is quite rude and seems to be getting Nim into more danger rather than out of it.

To survive, Theory and Nim must brave man-eating fish, walls of tentacles, and devastating secrets: both their own, and ones the park desperately tries to keep hidden. Along the way, they may just discover that they’re stronger together than apart.