Red Sonja 1: The Ring of Ikribu

She lived in a savage world in an uncivilized age-a world ruled by men
and governed by the sword. They called her Red Sonja-for her flame-red
hair, for the smouldering fire of her pride which gave her sword-arm
strength that few men could match and none had ever defeated.
The Ring of Ikribu is a novel written by David C. Smith and Richard L. Tierney,
which was released in 1981. It is the first in a six book series based
upon the comic book character of Red Sonja, who was, in turn, loosely
based on the character of Red Sonya (with a "Y"), who was created by Robert E. Howard.