I just finished reading this book, and wow, just, wow! I've read the previous three books in this series and enjoyed them very much; Sanctuary Unbound, Book 4 in the Red Rock Pass series is my new favorite.As the book opens, Cindy Shepherd is taking care of the pack Alpha, Gavin, who's just had his 3rd heart attack. Gavin knows he's sick, and he's waiting for Keith to come back from Bedagi Creek, where he's wrapped up events from book three and is on his way home to Red Rock - and he's bringing a vampire. Cindy is the Pack doctor. We met her in the previous books but don't know much about her except that she was Dylan's ex-girlfriend in Sanctuary's Price.Adam Dubois is the infamous flannel-wearing lumberjack vampire I've been hearing so much about. We met him in Sanctuary's Price, where he helped Dylan and Joe overcome a sadistic vampire who almost killed that local pack. He's come to Red Rock to help his old friend Gavin protect his pack from another threat.Events from book 3 have led to an eventual showdown with another vampire who's stealing werewolf magic to try to take over Red Rock. With the help of Sasha, their resident witch (and heroine from book 3), Adam is going to try to save Red Rock.I loved this book! From the opening scene, things were all action: There are some shifts in the pack heiarchy, and changes are coming in future books that I think will break my heart. Our heroes/heroines from the previous books are all present and very busy - Gavin and Sam are dealing with their own issues as well as trying to keep the pack safe. Keith has recovered, and he and Abby, along with Dylan and Sasha, are busy helping prepare for the attack. Joe and Brynn are still dealing with Brynn's wolfy issues.Cindy and Adam have a chemistry that is undeniable. As soon as Adam pulls into town and sees Cindy, he knows he's in trouble. There's instant attraction on both sides, but they both fight it; they each have difficult histories but become closer as they decide to trust each other and talk out their issues. At first they agreed to get together because they were both lonely and attracted to each other but gradually realized they had so much more than just lust in common. They talked and shared and grew into so much more than bedmates. There was a scene at the end of the fight scene that had me holding my breath - Adam's love for Cindy is almost overwhelming.The fight scene - oh, the fight scene! Moira Rogers wrote the hell out of the fight scene - I could visualize the whole thing in my mind's eye from start to finish. Cindy is definitely not a shrinking violet, and this flannel-wearing vampire was both glorious and terrifying in action. The two of them together are going to be a force to be reckoned with.I give Sanctuary Unbound 4 1/2 stars!