<p>They used to be part of a special ops intelligence group known only as the Unit&mdash;until the brass decided to ignore their intel and they followed Lieutenant Grant Casey into a firestorm to save a museum and the people trapped inside.&nbsp; The aftermath leaves Grant and his wingman in the hospital and the whole team on the outs with the military.&nbsp; But Grant fuses his interest in history with his specialized training and the Bone Guard is born.</p><p>The Bone Guard. . .where adventure and history ignite.</p><p>When Liz Kirschener discovers a musical map to Ghenghis Khan&#39;s tomb her scholarly life explodes into arson and gunfire.&nbsp; Grant Casey brings in his team for a race to the tomb&mdash;to prevent Chinese authorities from burying it forever. This novel speeds from Cambridge Massachusetts to Cambridge England in search of clues&mdash;then flies to Inner Mongolia bringing together a Mongolian singer Grant&#39;s ex-commanding officer and a Hong Kong billionaire with a secret past.&nbsp; Mongolian traditions clash with modern priorities in a high-stakes adventure to save one of the world&#39;s greatest lost treasures.</p>