In the finale of The Watcher Chronicles, Jess finally learns what Lucifer's plans are for humanity. Just when she found meaning in her life again, Jess is worried Lucifer and the princes of Hell will succeed in their diabolical scheme to snatch it all away from her. With Mason and the other vessels by her side, Jess must face the most difficult decision of her life. Is her newfound faith in God strong enough to see her through to the end? Or will her love for Mason cause her to falter at the last second and doom the world of the living forever?