If the chronicle is to be believed, Óláfr's separation from Lauon enraged her sister, who surreptitiously tricked her son, Guðrøðr Dond, into attacking Óláfr. Following what he thought were his father's orders, Guðrøðr Dond gathered a force on Skye and proceeded to Lewis and Harris, where the chronicle records that he laid waste to most of the island. Óláfr is said to have only narrowly escaped with a few men, and to have fled to the protection of his father-in-law on the mainland in Ross. Óláfr is stated to have been followed into exile by Páll Bálkason, a sheriff on Skye who refused to take up arms against Óláfr. The chronicle then indicates that the two landed on Skye, and learned where Guðrøðr Dond was stationed, and defeated him in battle. The latter's captured followers were put to death, whilst Guðrøðr Dond himself was blinded and castrated. Although the chronicle maintains that Óláfr was unable to prevent this torture, the Icelandic annals record that Óláfr was indeed responsible for his nephew's plight.