Grettir overthrows Thorir Redbeard
He tried to slay the outlaw while he was swimming back from his nets, but Grettir sank like a stone and swam along the bottom, till he reached a place where he could land unseen by Redbeard. He then came on him from behind, while Redbeard was still looking for his appearance out of the water; heaved him over his head, and caused him to fall so heavily that his weapon fell out of his hand. Grettir seized it and smote off his head.
DEATH OF GRETTIR THE STRONG.
About this time, Grettir having been so many years in outlawry, many thought that the sentence should be annulled, and it was deemed certain that he would be pardoned in the next ensuing summer; but they who had owned the island were discontented at the prospect of his acquittal, and urged Angle either to give back the island or slay Grettir.
Now Angle had a foster-mother, Thurid; she was old and cunning in witchcraft, which she had learnt in her youth; for though Christianity had now been established in the island, yet there remained still many traces of heathendom.
Angle and she put out a ten-oared boat to pick a quarrel with Grettir, of which the upshot was that the outlaw threw a huge stone into the boat, where the witch lay covered up with wrappings, and broke her leg. Angle had to endure many taunts at the failure of all his attempts to outplay Grettir.
One day, Thurid was limping along by the sea, when she found a large log, part of the trunk of a tree. She cut a flat space on it, carved magic characters, or runes, on the root, reddened them with her blood, and sang witch-words over them; then she walked backwards round it, and widdershins—which means in a direction against the sun—and thrust the log out to sea under many strong spells, in such wise that it should drive out to Drangey.
In the teeth of the wind it went, till it came to the island, where Illugi and Grettir saw it, but knowing it boded them ill, they thrust it out from shore; yet next morning was it there again, nearer the ladders than before; but again they drove it out to sea.