The king gave Thrond a governorship for slaying his sister, put the rest under tribute, and returned home.
At this time Thorias ( ?) and Ber (Biorn), the most active of the soldiers of Rusla, were roving in Ireland; but when they heard of the death of their mistress, whom they had long ago sworn to avenge, they hotly attacked Omund, and challenged him to a duel, which it used to be accounted shameful for a king to refuse; for the fame of princes of old was reckoned more by arms than by riches.

So Homod and Thole came forward, offering to meet in battle the men who had challenged the king.
Omund praised them warmly, but at first declined for very shame to allow their help.

At last, hard besought by his people, he brought himself to try his fortune by the hand of another.

We are told that Ber fell in this combat, while Thorias left the battle severely wounded.

The king, having first cured him of his wounds, took him into his service, and made him prince (earl) over Norway.