Blood Bound/Patricia Briggs

"Kick-ass were-coyote auto mechanic Mercedes Thompson" ( Publishers Weekly ) has leapt to the forefront of today's urban fantasy heroes, thanks to bestselling author Patricia Briggs. Now, Mercy finds herself in the middle of a bloodbath--with only one way out... Mercy has friends in low places--and in dark ones. And now she owes one of them a favor. Since she can shapeshift at will, she agrees to act as some extra muscle when her vampire friend Stefan goes to deliver a message to another of his kind. But this new vampire is hardly ordinary--and neither is the demon inside of him. When the undead and the werewolves sent to find him don't return, the local vampire queen turns to Mercy for help. A coyote is no match for a demon, but Mercy is determined to get her friends back--including the two werewolves circling around her heart. About the Author: Patricia Briggs is the #1 New York Times bestselling author of the Mercy Thompson urban fantasy series and the Alpha and Omega novels.