Review provided by Netgalley. 
 This is a really good urban fantasy. I like the heroine and her particular talent, the fact that she is able to see and track the energy of supernatural creature. Her past with the vampire coven and her husband was also very interesting to me. 
 Juliana's job as a Realm Walker is fairly classic for an urban fantasy novel and the plot is solid if not original. I like the diverse cast of friends and allies Juliana has; contrary to many urban fantasy, she is not friendless and I like a lot some of those characters and their talents. 
 Juliana has no memories of her past before she was adopted by the vampires coven, and I was really intrigued by what happened to her. In the course of the novel, we learn more about that and about her family and I found them to be fairly original. However, most of those secrets are still hidden 
 As for the romance between Thomas and Juliana, I have mixed feelings about this. My principal problem is about Thomas: the author wanted to show his aged and his otherness, his lack of humanity and of understanding human, but it is pushed to the extreme and done too awkwardly for me. Juliana was in love with Thomas as an adolescent and Thomas has only accepted to sleep with her if they married and established a magical bond between them, which she accepted. The following day however she get frightened when Thomas speak of presenting her to the vampire council and of the political role she will have to play. She asked Thomas for time and he reacted by vanishing completely from her life for seven years. He did not contact her in any way, justifying himself by saying that he would not have been able to restrain himself otherwise. When he came back to her at the beginning of the novel, he doesn't understand why she is angry with him. I found this really ridiculous, as well as the fact that he did not think at all of the way other would perceive his actions and of the danger he put her in by abandoning her like that. For me it was not credible when he was presented as an old and powerful vampire, really proficient in politics, in addition to his remarks about Juliana's future place in vampire politics. 
 In addition, (view spoiler)[when Thomas discovers the danger Juliana's job as a Realm Walker put her in, he uses his relations to put pressure on Juliana's boss to give her safer assignment. He thinks that when Juliana will learn this, she will not know who has done this or why and he explicitly says gold help him if she discover the truth. Of course, Juliana immediately guess. It really makes Thomas appear stupid, not clueless about human interactions. (hide spoiler)] 
 Also, I have a problem with Michael, Thomas' second. (view spoiler)[ Thomas and Juliana have kept their union a secret and Thomas have left her in Michael's care. When Juliana is hurt by one of Thomas' enemy, they all kept it a secret from Thomas, something I didn't really understand even if Juliana was bitter that he had abandoned her and that Michael was on her side. Indeed it was Thomas' responsibilities to protect her and he was the better placed to resolve the problem. In addition, for me it is a betrayal on Michael's part to keep the betrayal of one of Thomas' man a secret just so Juliana and him could take care of it (not very effectively) on their own. Because of the secret, Thomas believes that Michael and Juliana are having a relation during his absence and he is fine with that even if he wants it to cease now that he has come back. For me that reaction is not really in keeping with Thomas' character and the fact that he is in love with Juliana (sufficiently to have formed a mind and life bond with her). (hide spoiler)] 
 However, Thomas and Juliana's relationship was still very interesting for me despite those problem. In the end, Thomas is a classical urban fantasy and paranormal romance hero, very protective and possessive of his mate, and Juliana had no problem putting him in his place and affirming her independence despite her love for him. 
 Thus this novel was a good read for me, and I look forward to reading the next one in the series and to finding more about Juliana's still numerous secrets. I would recommend this book to any fans of classic urban fantasy and paranormal romance.