Mage Hunter Omnibus

Guthrie Hackett guards the border between Ursia and the barbaric nation of Dartague, but the sergeant finds himself standing alone when his squad is wiped out before his eyes.
Left alive by his enemies, Guthrie seeks to rejoin the Ursian army. To do so, he traverses a wasteland, the frozen north of his home nation now laid to waste by barbarian raiders.
War is afoot. The Ursians vow to avenge the treachery of their northern neighbors, yet the war might be the least of Sergeant Hackett's troubles.
The eyes of an ice witch and a wyrd woman have fallen upon the sergeant, and he soon comes to realize there are powers within himself that have never been tapped.
But power brings further danger, for magic is a crime punishable by death in Ursia, and the knights who are judges and executioners are Guthrie's superior officers.
Originally a five-part e-book series.