Thorir bade him do even so, and thereafter Grettir received him, and found this, that he must have the strength of twain, what work soever he took in hand:  he was ready for anything that Grettir might set him to, and Grettir need turn to nothing, nor had he found his life so good since he had been outlawed, yet was he ever so wary of himself that Thorir never got a chance against him.

Thorir Redbeard was with Grettir on the heath for two winters, and now he began to loathe his life on the heath, and falls to thinking what deed he shall do that Grettir will not see through; so one night in spring a great storm arose while they were asleep; Grettir awoke therewith, and asked where was their boat.  Thorir sprang up, and ran down to the boat, and brake it all to pieces, and threw the broken pieces about here and there, so that it seemed as though the storm had driven them along.  Then he went into the hut, and called out aloud,

“Good things have not befallen us, my friend,” said he; “for our boat is all broken to pieces, and the nets lie a long way out in the water.”

“Go and bring them in then,” said Grettir, “for methinks it is with thy goodwill that the boat is broken.”

Thorir answered, “Among manly deeds swimming is the least handy to me, but most other deeds, I think, I may do against men who are not marvellous; thou mayest wot well enough that I was minded that thou shouldst not have to work while I abode here, and this I would not bid if it were in me to do it.”

Then Grettir arose and took his weapons, and went to the water-side.  Now the land was so wrought there that a ness ran into the water, and a great creek was on the other side, and the water was deep right up to the shore.

Now Grettir spake:  “Swim off to the nets, and let me see how skilled a man thou art.”

“I told thee before,” said Thorir, “that I might not swim; and now I know not what is gone with thy manliness and daring.”

“Well, the nets I may get in,” said Grettir, “but betray thou me not, since I trust in thee.”

Said Thorir, “Deem me not to be so shamed and worthless.”

“Thou wilt thyself prove thyself, what thou art,” said Grettir, and therewith he put off his clothes and weapons, and swam off for the nets.  He swept them up together, and brought them to land, and cast them on to the bank; but when he was minded to come aland, then Thorir caught up the short-sword and drew it hastily, and ran therewith swiftly on Grettir, and smote at him as he set foot on the bank; but Grettir fell on his back down into the water, and sank like a stone; and Thorir stood gazing out on to the water, to keep him off from the shore if he came up again; but Grettir dived and groped along the bottom as near as he might to the bank, so that Thorir might not see him till he came into the creek at his back, and got aland; and Thorir heeded him not, and felt nought till Grettir heaved him up over his head, and cast him down so hard that the short-sword flew out of his hand; then Grettir got hold of it and had no words with him, but smote off his head straightway, and this was the end of his life.