The Warlord

Read The Warlord Storyline:

Thrown from a Viking ship in the midst of a treacherous storm in the
Mediterranean, Casca barely escapes a watery grave, only to face a new
adventure teeming with allies, adversaries, and religious fanatics.
Fighting off enemies from Saxon raiders to the warring Hsuing-nu tribe,
Casca travels from Rome to the Great Wall, where he seeks the wisdom of
the Far Eastern culture, but meets up with a devious concubine, who has a
battle plan of her own. Once again, Casca must face his eternal curse
of immortality as THE WAR LORD.