Veteran heroes, a secret map, a legendary lost tomb!

Former special ops intelligence officer Grant Casey races to follow a musical map to Genghis Khan's tomb before the Chinese government destroys it forever.

When a grad student discovers a musical map to Genghis Khan's tomb, her scholarly life explodes into arson and gunfire. Grant Casey brings in his team for a race to the tomb—to prevent Chinese authorities from burying it forever.

From Cambridge, Massachusetts to Cambridge, England Grant's team searches for clues—then flies to Inner Mongolia, bringing together a Mongolian singer, a Hong Kong billionaire with a secret past, and Grant's ex-commanding officer, who hates his guts.

Mongolian traditions clash with modern priorities in a high-stakes adventure to save one of the world's greatest lost treasures.

The Bone Guard. . .where adventure and history ignite.