"The location of the glymera's notorious prison camp was lost after the raids. When a freak accident provides Nyx clues to where her sister may still be doing time, she becomes determined to find the secret subterranean labyrinth. Embarking on a journey under the earth, she learns a terrible truth - and meets a male who changes everything, forever. The Jackal has been in the camp for so long he cannot recall anything of the freedom he once knew. Trapped...