If, like so many people, you're waiting and waiting for a copy of Rick Riordan's The Red Pyramid, here's another book to read in the meantime!
Middleworld (Gr. 5-9)
(The Jaguar Stones, book 1) Max Murphy was looking forward to a family vacation in Italy, but his parents--famous archaeologists--leave for a sudden excavation among Mayan ruins instead, leaving Max home with their strange housekeeper. What a waste of a summer ... until Max is rushed along to Central America, too. Smugglers, theives, murderous bandits, and the ancient Mayan gods all play a role in this thrilling mystery.