Aella

 was the wife of Bior and the mother of Einar.

When Einar was killed in a raid by Vignor's men, Aella tried to convince Bior not to attack Vignor's village as revenge. However, he was able to convince Hefn to perform the ritual turning the men into bears, threatening to kill Aella and Zoe Heriot if Hefn wouldn't comply.

After Bior became stuck in bear form, Aella and Hefn worked with Vignor's tribe to make peace. (PROSE: That Which Went Away)