This is another of the Immortals After Dark Series. In this book Malkom Slaine, a vampire demon, and Carrow Graie,witch, are fated to be mates. They both have many personal issues and come from different planes of existence. Carrow finds Malkom through a portal and must lead him through it to save Ruby. They go through many trials and discoveries. Also periods of distrust. It is a good story and will keep your attention. I would recommend it.