Animorph Percy Jackson and the Olympians: The Staff of Hermes

Hermes showed up during Percy's and Annabeth's date. Hermes' staff, the caduceus, was stolen by the fire breathing giant Cacus, & they need to retrieve it & bring it back before the other gods find out. In return Percy arrange something with Hermes for his & Annabeth's one month anniversary that he may have forgotten. But the quest brings up questions of a new unknown enemy.