The 2012 Prophecies: Heir of the Jaguar

Adopted from Guatemala as an infant by an American archaeologist, Cory McClintock knows nothing about the culture of his birth, nor the ancient prophecy about the end of time. Days before the approaching apocalypse, Cory is kidnapped and returned to Guatemala. As the last living heir to the first Maya king, only Cory can satisfy the gods' demand for human blood required by an ancient ritual. But the gods aren't the only ones hungry for a piece of Cory.
By killing him, Cory's biological uncle will make himself a living god and rule the new creation predicted to rise from the ashes of the old one. Cory has to choose: save himself, or a world reeling toward disaster.