Cradle of Destiny (Outlanders #56) by James Axler
Reborn after near nuclear eradication, humanity struggles in a world defined by a secret history of conspiracy, rivalry and inhuman domination. As an ancient powerful race attempts to retake planet Earth, a courageous and sophisticated band of freedom fighters, the Cerberus rebels, leads the resistance in a daring battle to free humanity from the grips of an alien power struggle.
In the Middle East's legendary Fertile Crescent, millennia-old artifacts are unearthed. Shockingly, they appear to belong to one of Cerberus's own. As events converge to play out a destiny forged in cross-dimensional currents, Grant is plunged back through the shimmering vortex of time. Part phantasm, part warrior known as Enkidu, the man bull, he is hunted by humanity's oldest enemy. Kane, Brigid and Domi lead a rescue party across a parallax to destroy the legendary god beast Humbababefore Grant is lost forever