Hurog Series by Patricia Briggs

From the #1 New York Times bestselling author of Iron Kissed a magical tale. Riding into a war that's heating up on the border, Ward, the new lord of Hurog, is sure he's on the fast track to glory. But soon his mission takes a deadly turn. For he has seen a pile of magical dragon bones hidden deep beneath Hurog Keep. The bones could prove to be dangerous in the wrong hands, and Ward is certain his enemies will stop at nothing to possess them.

Irresistible fantasy from the #1 New York Times bestselling author. As the rebellion grows against High King Jakoven, Ward, ruler of Hurog, realizes he must join with the rebels. However, Jakoven can crush his enemies with dragon?s blood. The very blood that courses through Ward?s veins.