Thade and Cassian's enemies have made themselves known. One is the most infamous traitor of Arthurian legend. The other is a hunter with a mystical knack for tracking anyone anywhere. The deadly duo is out for blood, and perhaps something even more sinister from Thade.

Every second counts as Thade, Cassian, and Hernando race across Britain in a desperate search for safety. To make things worse, Merlin is appearing in Thade's dreams—and he is nothing like what any of them expected him to be. Half demon, half fae, he haunts Thade's subconscious, making him question just how much he inherited from his past life. Just how powerful is he? And is Thade even fully human?

Meanwhile, as Cassian and 'the professor' continue to rely on each other for strength and comfort, their relationship starts to bloom. Their lives and their hearts are on the line as they continue to investigate who they are and what they truly want from each other.

Their best resource: the mysterious book given to Thade by the sinister hunter. But what lies within may be more than any of them can handle…