Heart of the Pharoah — Dave Wolverton

Cleopatra's tomb has been discovered and the Germans are determined to rob it. It's 1937 and the Germans want to use the treasure to finance their global operations. But half-living mummies are trapped inside the tomb. Twelve-year-old Alex O'Connell knows what that means: trouble. If Alex doesn't stop the Germans, they'll ransack the temple -- and Cleopatra will never reach the spirit world. Will Alex get to the tomb in time?