Senior year at Camp Half-Blood just got a whole lot spookier. Percy Jackson thought he'd seen it all—minotaurs, titans, and even a few run-ins with the gods—but pet sitting Hecate's pets? That's a new level of terrifying.
With one college recommendation letter secured from Ganymede, Percy needs two more to get into New Rome University. When Hecate offers him what seems like a simple favor—watching her polecat Gale and giant mastiff Hecuba during Halloween week—Percy jumps at the chance. But as any demigod knows, when gods offer "opportunities," they rarely end well.
While Percy and Annabeth are at school, Grover can't resist sampling a strawberry-flavored potion in Hecate's laboratory. The result? A giant, frenzied goat that rampages through the mansion, leaving destruction in its wake—and somehow manages to let Hecate's pets escape. Now the trio has to find two missing magical animals, repair a ruined mansion, and somehow make everything right before Hecate returns on Saturday.
With Halloween fast approaching and time running out, Percy calls on old and new friends to help track down the wayward pets and restore order. From the mysterious depths of Hecate's endless mansion to the spooky streets of Manhattan, this adventure takes Percy through magical realms and face-to-face with gods and monsters both familiar and new.
Rick Riordan masterfully weaves together humor, heart, and high-stakes adventure in this latest Percy Jackson installment. Perfect for fans who love Percy's sarcasm, Annabeth's wisdom, and Grover's loyalty, this book delivers the perfect mix of tricks and treats that make Halloween—and Percy's senior year—unforgettable.