Skye Warren is my go-to author for dark, sexy, richly-written erotica. Annika Martin is a new author to me and now I want to read all of her books, too! As with all of Skye's books, the hero Grayson (yes, he is a hero to me) is darkly sexy, dangerous, forbidden and completely overpowering. He knows his power and attraction and he uses it against those weaker than him. Unfortunately it is a survival skill he learned at a very young age. Abigail meets him in prison when she is picked to teach a writing course to the inmates. But very quickly she realizes that Grayson is dangerously attractive, untrustworthy and dishonest. Or is he? 
 This book literally kept be turning the pages until the middle of the night. There is no right and wrong in this book, only two extremely damaged and vulnerable people who quickly become the target of a massive manhunt. Prisoner takes one thrilling turn after another, and Abigail, who fought Grayson with all her might, slowly realizes that all is not as it seems. 
 I loved Abigail's bravery in the face of absolute and complete danger. At first it seems as though Grayson would just as soon kill her than f*** her. But as with all for Skye's books (and I will assume Annika's books as well), this intensely sexual man is struggling with his own inner demons. Grayson makes no apologies for his actions. But will he and Abby survive all of the forces out to destroy them. 
 I couldn't put this book down. The prose is perfect and the story thrilling, sexy and even tender and heartbreaking at times. It is told in alternating point-of-views which gives great insight into Grayson's motivations. I was devastated to see this story end and I can only hope that the authors intend to write more stories including Grayson's crew. I absolutely loved Prisoner. It is gritty, raw, sexy, very layered and nuanced. Highly recommended.