Zero Moment Joshua Files Series, Book 3.

After returning from his adventure in Mexico and learning about the secret Mayan prophesy that his father and grandfather were a part of, Josh is certain his father's death was no accident. Piecing together the clues with the new information he has, all while avoiding his mom's questions, Josh sets out to prove it. But when he finds out a shocking secret about the legendary Ix Codex, he must go back to Mexico to the secret city of Ek Naab. Only t...