"Even now sin is knocking at our door." Little did the people of Siriad know how literal Seth was in his deathbed prophecy. Several Watchers were already united with Satan in a massive effort to abandon their posts in Heaven and claim the Earth as their own. When they arrive in their physical forms on Earth and peacefully offer Heaven's knowledge in exchange for men's daughters, how can the inhabitants of Eden refuse? Siriad's leaders alone stand firm in their backmountain belief in the Almighty who will save them from the economic sanctions of the Watcher-united Eden. However, when Siriad's gate is attacked by raiders from the plains, Jared, heir to the throne of Siriad, is sent on a mission with his new wife and some friends to discover how far the Watchers will go to conquer them. As they travel throughout Eden, trying to hide their backmountain ways and blend in with the scantily clad and technologically advanced Watcher cultures, they stumble across secret alliances with the savage raiders, genetically altered monsters, the banished mate of the dragon who deceived Eve, and a huge 'hospital' where women are sacrificed to breed some of the Watcher's creations. Will they uncover the plot to destroy mankind in time to save Siriad?