The Joshua Files: Invisible City

Joshua's life was pretty average until his archaeologist father was reported dead in a plane crash. Josh's dad had been searching for the Mayan Codex, said to contain key information about the 2012 Mayan prophecy foretelling the end of the world. Was the crash simply a tragic accident, or is there more to his father's death than the authorities are willing to tell him?
This first novel in the action-packed Joshua Files brings Josh to the depths of the Mexican jungle and into a secret society existing beneath an ancient Mayan Pyramid. Sucked into a vortex of intrigue, Josh becomes a target for danger as he learns that his father, grandfather, and Josh himself are the key to solving the mystery of the prophecy. Can Josh find the missing codex in time to save mankind?