Harris, M. G.

Gr 5—8—This second novel in the series starts off with the theft of a priceless artifact in Kabul by a mysterious ninjalike thief and then quickly switches back to Oxford, England, where 14-year-old Joshua Garcia continues on an adventure involving his father's death in Mexico, a hidden Mayan civilization called Ek Naab in which the citizens are brilliant and highly advanced, a lost codex, and danger at every turn...

Gr 5—8—An action-packed adventure involving conspiracy theories, end-of-the-world prophecies, government agents, futuristic technology, and a bit of the supernatural...