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Blood Bound (Mercy Thompson, Book 2) (original 2007; edition 2007)
Amazon.com Product Description (ISBN 0441014739, Mass Market Paperback)
Mechanic Mercy Thompson 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.
(retrieved from Amazon Mon, 30 Sep 2013 13:28:11 -0400)
Jalopy mechanic and were-creature Mercedes Thompson can change into a coyote whenever she wants to. As a favor, she agrees to back up vampire friend Stefan when he confronts another of his kind. But, being demon-possessed, that vampire proves deadlier than most and before she can do anything to help, Mercedes is in the middle of a war with vampires and werewolves.
(summary from another edition)
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