Tyler Hayes wakes up as a flea—tiny, ridiculous, and absolutely furious. But when he discovers that drinking blood makes him stronger, faster, and closer to growing wings, he stops complaining and starts chomping. Ruthless, clever, and stubborn as hell, he claws his way up the food chain one bite at a time. The only one who notices? A cold, grudge-holding academy beauty named Nina Mercer. And she's not sure whether to squash him—or help him rule.