They look like us, but they are faster, stronger, and fear nothing. They are also hell-bent on destroying us....

In Whitley Strieber's latest spellbinding thriller, Dr. Thomas Turner must navigate an unsettling alliance between extraterrestrial scientists and the United States government to create an alien-human hybrid with alien brilliance, superhuman strength...and an alien's cold, cold heart. After the government orders him to destroy his demonic handiwork, Dr. Turner discovers that the hybrids are smarter than all of us and that they intend to destroy mankind.

The only one capable of defeating these fierce reptilian creatures is Dr. Turner's first hybrid creation, respected U.S. soldier Mark Bryan. But Bryan must confront agonizing truths about the woman he loves and his own disputed loyalties before he can defend humanity's right to exist.