Saffi and her companions have escaped The Scholar and the Drakes, but there's not many places left for them to hide. It won't take their enemies long to track them down now that a horde of zombies are following after them, leaving a trail of the dead that's easy to follow. Despite the misgivings of her friends, Saffi decides it's best to travel into the ruins of the old world, deep beneath the Steel Plains. In the catacombs she'll discover the truth about her identity, as well as the secrets the people around her have been keeping. Ebon will finally be unmasked, Joyce will face the demons of her past, and Saffi will be ultimately forced to make the single greatest sacrifice in her entire life.