Not to be confused with Isold.Kindred Spirits. She was a contemporary of the Barrows Brothers and was Guthan's lover. Ahrim killed her in order to "save his brother's soul", as he put it, because Ahrim viewed Isolde as an idolator. However, both Sliske and Guthan imply that the real reason may have been that Ahrim had feelings for Isolde himself.
During the quest, Sliske revives Isolde in front of Ahrim and Guthan, if Ahrim was hurt at less than four possible points in the maze, Ahrim kills her again, otherwise Ahrim will ask for forgiveness.