I absolutely hated HATED HATED Reseph/Pestilence in the previous books. 
 When his seal was broken, he became the worst enemy of the humankind spreading various horrible diseases all over the world and killing millions of people. Horrible deaths! 
 Rogue Rider is the book about his redemption. 
 In the last book, he has disappeared from the face of earth. In this book he has no memory, no name, no past. Since he used to be a good guy before he became the most evil creature on Earth, the loss of his memory is a blessing. He will not like himself when he remembers who he used to be. 
 So, when Jillian finds him naked and unconscious near to her isolated home and takes him in, he does not really try too hard to remember. Especially when the two of them starting falling in love. 
 "Can you handle not knowing who I was? ... Can you deal with the man I am now?" 
 "Yes," she whispered in a husky rasp. "Oh, yes." 
 "Good," he said, lowering his mouth to her throat. "Because the man I am now is who I want to be. Forever." 
 You may say that Jillian is a bit too compliant and innocent in the beginning. She does not really think of the fact that she was attacked by a Demon before and that now she wants to be left alone and forget. 
 She falls in love too fast, without knowing anything about the past of this beautiful stranger. 
 But Reseph before he became Pestilence, used to be the most lovable of the four horsemen. He has a gift with words, he knows how to love to be tender, and he knows how to make someone feel unique. And he really likes Jillian. 
 Naturally his past will come and find him even at this isolated place. Jillian will soon find out that there is something worse than the demon that hunts her. And that is the Master of all Demons. 
 The book is full of revelations for the four horsemen and the people around them. We learn: 
 -Who is the four horsemen's daddy 
 -Who is Harvester's daddy 
 The book is more about forgiveness, acceptance and romance and less about epic battles: 
 "I feel like I'm finally whole. I'm five thousand years old," he rasped. "But the day you found me in the woods, that's when my life started." 
 After I finished it, I cannot really say that I totally forgave Reseph. But I think I have accepted a little his actions.