Alex and Ren must confront the Death Walkers, The Order, and an army of the dead in an attempt to save themselves, Alex's mother, and the world--and hope that Ammit, the Devourer of Egyptian legend, will be able to separate the guilty from the innocent.

"In the 1830s Owen Ward is cabin boy on the "Polaris," a ship on a voyage of scientific exploration, when illness and a mutiny off the coast of Brazil cause the adult crew to abandon the ship, leaving the handful of young cabin attendants and deckhands behind. The young seafarers are determined to bring their ship to safety, but when one of them disappears they begin to suspect that there is something deadly on board with them"--