FROM THE TEMPLE OF SOLOMON TO THE MISTS OF AVALON--THEY WERE THERE. NOW THEY ARE OUR ONLY HOPE. They were born on a planet in the spiral arm of the Milky Way Galaxy. In a bloody revolution they became known as "godkillers"--two humans who led a revolt against the deathless race, the Airlia, and a plan to breed human foot soldiers for ceaseless intergalactic warfare. Now Donnchadh and Gwalcmai are on their way to a planet called Earth, where the Airlia have forged a foothold in the land of Atlantis. For a man and a woman who have lost everything but each other, an incredible journey through history is about to begin. Spanning centuries and epochs, they will travel from the teeming streets of ancient Rome to Pharaoh's bloodied pyramids to the realm of King Arthur. Sustained by the mysterious technology of the Airlia, Donnchadh and Gwalcmai must safeguard one extraordinary golden grail, a heavy, bloodstained sword called Excalibur--and each other's lives. For while an unquenchable evil struggles to take hold of the planet, they are the watchers, waiting for the moment when humankind can wage its last battle for survival.