Godslayer / Shadow Climber / Dragonrank Master (The Bifrost Guardians)

Here, for the first time in one volume, are the first three novels in Mickey Zucker Reichert's most startlingly original series: an epic saga of a Vietnam soldier sent through time and space to a battlefield where the weapons are not bullets and grenades but swords and spells--and where elves, thieves, and martial arts masters can find themselves unwillingly enlisted in a war between the gods....