Most stories about Hell come from the outside. Tris is trapped between both worlds in agony, the structure of our world is much more complicated than once thought. With the help of a dark prince, Tris must seal hell back up and keep all the monsters inside from wreaking havoc on earth. The problem is she is part monster from Hell herself....

They have one thing in common, and that is staying alive. Cassiel has been through horrifying things to get to where she is and will do more to get her revenge. Tatius is a pawn in her game until things change. Why do they work so well together as enemies? Will this get in the way of Cassiel's revenge?