Dragonrank Master
The balance between Chaos and Law has been all but lost.
Fenris Wolf and Hel herself both seek vengeance on Al Larson and his allies, the Shadow Climber, and the master swordsman Gaelinar.
Pursued by these nightmare foes can Larson and the rest survive long enough to recover the one hope of the forces of Law---the legendary rod of Geirmagnus, the first Dragonrank mage---a mission that will take them from the citadel of Dragonrank powers to war-torn Vietnam to Hel's dark realm and beyond?
(Extracted from the jacket.)
Found out more about the World of the Bifrost Guardians.