The god Apollo cast down to earth and trapped in the form of a gawky teenage boy as punishment must set off on the second of his harrowing (and hilarious) trials. He and his companions seek the ancient oracles - restoring them is the only way for Apollo to reclaim his place on Mount Olympus - but this is easier said than done. Somewhere in the American Midwest is a haunted cave that may hold answers for Apollo in his quest to become a god again . . . if it doesnt kill him or drive him insane first. Standing in Apollos way is the second member of the evil Triumvirate - a Roman emperor whose love of bloodshed and spectacle makes even Nero look tame. To survive the encounter Apollo will need the help of a now-mortal goddess a bronze dragon and some familiar demigod faces from Camp Half-Blood. With them by his side can Apollo face down the greatest challenge of his four thousand years of existence?