Ghosts of the Tristan Basin

Taniel Two-Shot is a powder mage with the Tristan Ghost Irregulars, a band of volunteers who have made a name for themselves fighting in the Fatrastan Revolution. They range through the swamps of the frontier, cutting off enemy supplies and raiding towns while Taniel hunts the Privileged sorcerers that make the Kez armies so powerful.
When a desperate call for help comes from the nearby city of Planth, the Irregulars aren't the only ones to answer and Taniel must deal with another hero of the revolution: Mad Colonel Styke. But not all is well within the young Fatrastan government, and more hangs on the defense of Planth than Taniel and his companions could possibly know.