Two earls ruled in the Orkneys: Brusi and Thorfinn, half-brothers. Of the islands, two thirds were under Brusi, the elder; but besides his third Thorfinn had inherited Caithness and Sunderland in Scotland from his grandfather the Scot king. So Thorfinn lived on those lands, and Brusi guarded all the isles; but Thorfinn complained that the guard was ill-kept, since vikings harried oft in the isles, coming from Norway or Denmark.
There was a man named Ar the Peacock, who was a thane of Brusi the Earl and lived on the Mainland of Orkney. Now the Mainland of Orkney is an island, and Ar ruled its northern end, having charge of the tribute to the Earl and the keeping of order. He lived at that place called Hawksness in Hawkdale, below the downs and sheepwalks, where is good harbor in winter. Forty men he kept, and a war-ship; his hall was great, and there was a stone church close by; fisher-folk and farmers lived in the same settlement.
Ar was a vain man and fond of show, kindly but weak. Because he had no child he had taken to him a lad to foster, who was called Grani the Proud, Ar's Fosterling. Grani was tall and fair, of sixteen summers, skilled in games but ignorant of war. He was dear to his foster-father's heart, and Ar could deny him nothing.
That war-ship of Ar's was for the ward of the isles, and Ar kept it at all times in readiness. One day news came that vikings were on the west coast, plundering and burning. Ar sent for Sweyn, the master of his ship.
"Thou shalt take the best of thy men," said Ar, "and search for those vikings. And because Earl Thorfinn has complained that our work is ill-done, thou shalt take all pains."
Sweyn said he would.
Then Grani stood before Ar, and said: "Thou hast many times promised I should go a-fighting. Now may I go with Sweyn, or wilt thou put me off yet another time?"
Ar remembered that he had heard of but one viking-ship, so he said: "Thou mayest go."
"Thou hast promised me thralls when the next captives are taken. May I choose them from this ship?"
"Two thralls mayest thou have," answered Ar, "but all Orkneymen are to be freed."