The Mayan Destiny — Steve Alten

It is 2047: fourteen years since Jacob Gabriel descended into the Mayan netherworld, while his twin brother turned from their chosen path, opting to remain behind. Immanuel Gabriel - still running from the forces that hunt his bloodline - believes his actions proved his role in the Mayan prophecy to be nothing but an ancient myth. Now, though, he will realize his mistake. As the prophecy begins to repeat itself and mankind once again faces annihilation, Immanuel learns there was only ever one person with the power to end the cycle of destruction: himself.