Liaden universe novels

The epic Vampire Empire trilogy rushes to a heart-wrenching conclusion of honor and love, hatred and vengeance, sacrifice and loss. A war to the death. Empress Adele has launched a grand crusade against the vampire clans of the north. Prince Gareth, the vampire lord of Scotland, serves the Equatorian cause, fighting in the bloody trenches of France in his guise as the dashing Greyfriar. But the human armies are pinned down, battered by harsh weather