Steve Alten - Resurrection (Domain Trilogy, Book 2)

What happens to us when we die?
Is there really an afterlife?
Do we possess a soul?
Does God exist?
For Michael Gabriel, the answers to these questions lie in another dimension, a realm of eternity where there is no concept of time, only pure life force . . . pure existence.
And pure evil.
Five hundred years ago, the Mayan Popul Vuh prophesized the birth of powerful twins–the sons of Michael Gabriel. White-haired, azure-eyed Jacob, blessed with inhuman physical prowess, intelligence, and insight into the cosmos, knows from birth that he is meant for more. His dark-haired brother, Immanuel, refuses his genetic calling, desiring a normal life. But only the combined powers of the Gabriel twins can resurrect their savior father and save the human race from an eternity of repeating its own self-destruction.
There is a third great power upon the earth, born the same day as the twins. Exposed to the uglier side of existence, empowered by her post-human genetics, the beautiful, schizophrenic Lilith will travel down a darker path that leads to Xibalba–-the Mayan version of hell. An epic battle of good versus evil will begin . . . and the final fate of the human race will be revealed.