Middleworld (Paperback, Revised)

Fourteen-year-old Max Murphy is looking forward to a family vacation. But his parents, both archaeologists and Maya experts, announce a change in plan. They must leave immediately for a dig in the tiny Central American country of San Xavier. Max will go to summer camp. Max is furious. When he's mysteriously summoned to San Xavier, he thinks they've had a change of heart.
Upon his arrival, Max's wild adventure in the tropical rainforests of San Xavier begins. During his journey, he will unlock ancient secrets and meet strangers who are connected to him in ways he could never have imagined. For fate has delivered a challenge of epic proportions to this pampered teenager. Can Max rescue his parents from the Maya Underworld and save the world from the Lords of Death, who now control the power of the Jaguar Stones in their villainous hands? The scene is set for a roller-coaster ride of suspense and terror, as the good guys and the bad guys face off against a background of haunted temples, zombie armies, and even human sacrifice