It was Michaelmas-eve when they sailed out on the Firth, but when they came over to Ness (Caithness), they ran up into the country, and drove down a great number of cattle, which they brought on board their ships. There were strong currents and bad weather, so that the Firth was frequently impassable; but when favourable weather came, Swein sent a man in a boat from Ness, to give information that Earl Erlend had made a great strand-hewing[418] in Caithness, and was ready to sail to the Sudreyar when there was a favourable wind. When this came to the ears of Earl Rögnvald, he called his men together and made a speech to them, telling them to be on their guard, to be wary, and sleep every night on board their ships; “For now,” he said, “Swein may be expected every hour in the Islands; the more certainly the more he talks of going away.”
Early in the winter Earl Erlend and Swein left Thórsá, and took their course by the west of Scotland. They had six large long-ships, all well manned. They had to row, and when they had gone some distance from Caithness, Earl Rögnvald’s spies went out to the Islands, and told him the news. Then the Earls moved their ships to Skálpeid (Scapa), and Earl Rögnvald wished them to stay a while on board.
When Swein and Erlend came west off Staur,[419] the former said that they should not distress themselves by rowing any farther, and asked his men to put the ships about and set the sails. This action on the part of Swein was thought foolish, yet his men did as he desired them. When they had been sailing for a while the ships began to speed, because there was a fine breeze, and nothing is said of their voyage until they came to Vagaland,[420] in Orkney. There they heard that the Earls were lying at Skálpeid, off Knarrarstadir,[421] with thirteen ships. There were Erlend Ungi, Eirík Slagbrellir, and many other men of note. Thorbiörn Klerk had gone out to Papuley,[422] to Hákon Karl, his brother-in-law. It was four nights before Simon’s-mas when Swein, Asleif’s son, decided to attack the Earls during the night, but it was thought rather hazardous, as their followers were so much more numerous. Yet Swein insisted on having his own way; and so he did, because the Earl wished to follow his advice.