Red Sonja: She-Devil with a Sword Volume 11

In the mysterious land of Stygia, where the glistening sands hide dark sorcery and serpent gods, the warrior Red Sonja quests for the cursed Horn of Nergal. To save her friends from certain death at the witch's hands, Sonja must recover the ancient, destructive artifact from fabled Kheshatta, a city of magicians buried beneath the desert dunes.