Red Sonja: Death and the Devil #1

Sonja has dealt death many times in her travels.  Thing is, blood doesn't wash out and sometimes it comes back to haunt you.  Killing the Sultan of Turan has left the nation in a bloody chaos of serpent cults and warring rivals for the throne, and it is all Sonja's fault.  She returns to save the Sultan's true heir bring peace to the land.  At least, that's the plan.

She is not the only one hunting the boy, Bloodless, an undead assassin, stalks her every step.  He will force Sonja to face her demons!