The novel unfolds during Percy’s senior year at Alternative High School in New York — after the action of The Heroes of Olympus, but before The Trials of Apollo. This time around, Percy is not worried about saving the world. He has a much harder quest: getting into college. New Rome University requires recommendation letters from three gods, which means . . . yep, you guessed it. Percy has to run quests to get the letters. (That sound you hear is Percy screaming into his pillow in frustration.) First quest: the cupbearer of the gods, Ganymede, is missing his chalice. Not only is this embarrassing. It’s also a potential disaster, since any mortal who happens to drink from the cup will gain immortality. Percy, Annabeth and Grover have to find that chalice and return it to Ganymede before anyone realizes he lost it. These gods . . . they really need GPS tags on their magic items, don’t they?