The Secret of Sinharat

Raised on the savage world of Mercury, hard-bitten mercenary Eric John Stark lives among the people of the civilized solar system, but his calm veneer masks a warrior's spirit. Criminals staging a revolution in the Martian Drylands force Stark to side with the law in an adventure leading him to the ruins of the Martian Low Canals, a romance and a secret that could shake the Red Planet to its core.