now steinthor of ere had bought a ten-oarer at the ship ; but when he was to bring it home there fell on him a great gale from the west , and they drave east past thors-ness , and landed at thinghall-ness , and laid the keel up in gruflunaust , and went thence afoot over the necks to bank , and thence fared home in a boat ; but the ten-oarer he had not been able to go fetch through the autumn , so it lay still at gruflunaust .