phenomen a book

Yee-haw, partner! What would you do if you got transported to the Wild West only in your dreams? And what would you do if the person you are inhabiting is a rather bad dude? A vampire, in fact. What then is your next move when you find out that people are out to get you? In addition, it turns out that there are people on your side, including a charming cowboy who has some sort of dark history with the person you are currently in the body of.