Oddny longs for a quiet, peaceful life.

Gunnhild, on the other hand, burns for power, secretly longing to harness the magic that flows inside of her, and one day become queen. But after a visiting wise woman makes an ominous prophecy that involves them both, the girls take a blood oath to help each other always. When Oddny's mother is killed and her sister kidnapped by Viking raiders, she finds herself set adrift from the life she imagined.

Gunnhild, who fled her home years ago to learn the ways of a witch, is on her way to her exalted destiny. When they find each other again, their bond will be tested in ways they could never had imagined in this rich novel of magic, history, and sworn sisterhood.