Glam looked at the bit which he held in his hand and wondered much who could pull like that against him. Suddenly Grettir sprang under his arms, seized him round the waist and squeezed his back with all his might, intending in that way to bring him down, but the thrall wrenched his arms till he staggered from the violence. Then Grettir fell back to another bench. The benches flew about and everything was shattered around them. Glam wanted to get out, but Grettir tried to prevent him by stemming his foot against anything he could find. Nevertheless Glam succeeded in getting him outside the hall. Then a terrific struggle began, the thrall trying to drag him out of the house, and Grettir saw that however hard he was to deal with in the house, he would be worse outside, so he strove with all his might to keep him from getting out. Then Glam made a desperate effort and gripped Grettir tightly towards him, forcing him to the porch. Grettir saw that he could not put up any resistance, and with a sudden movement he dashed into the thrall's arms and set both his feet against a stone which was fastened in the ground at the door.
For that Glam was not prepared, since he had been tugging to drag Grettir towards him; he reeled backwards and tumbled bind-foremost out of the door, tearing away the lintel with his shoulder and shattering the roof, the rafters and the frozen thatch. Head over heels he fell out of the house and Grettir fell on top of him. The moon was shining very brightly outside, with light clouds passing over it and hiding it now and again.
At the moment when Glam fell the moon shone forth, and Glam turned his eyes up towards it. Grettir himself has related that that sight was the only one which ever made him tremble. What with fatigue and all else that he had endured, when he saw the horrible rolling of Glam's eyes his heart sank so utterly that he had not strength to draw his sword, but lay there wellnigh betwixt life and death. Glam possessed more malignant power than most fiends, for he now spoke in this wise:
"You have expended much energy, Grettir, in your search for me.
Nor is that to be wondered at, if you should have little joy thereof. And now I tell you that you shall possess only half the strength and firmness of heart that were decreed to you if you had not striven with me. The might which was yours till now I am not able to take away, but it is in my power to ordain that never shall you grow stronger than you are now. Nevertheless your might is sufficient, as many shall find to their cost. Hitherto you have earned fame through your deeds, but henceforward there shall fall upon you exile and battle; your deeds shall turn to evil and your guardian-spirit shall forsake you. You will be outlawed and your lot shall be to dwell ever alone. And this Ilay upon you, that these eyes of mine shall be ever before your vision. You will find it hard to live alone, and at last it shall drag you to death."When the thrall had spoken the faintness which had come over Grettir left him. He drew his short sword, cut off Glam's head and laid it between his thighs. Then the bondi came out, having put on his clothes while Glam was speaking, but he did not venture to come near until he was dead. Thorhall praised God and thanked Grettir warmly for having laid this unclean spirit. Then they set to work and burned Glam to cold cinders, bound the ashes in a skin and buried them in a place far away from the haunts of man or beast. Then they went home, the day having nearly broken.
Grettir was very stiff and lay down to rest. Thorhall sent for some men from the next farms and let them know how things had fared. They all realised the importance of Grettir's deed when they heard of it; all agreed that in the whole country side for strength and courage and enterprise there was not the equal of Grettir the son of Asmund.
Thorhall bade a kindly farewell to Grettir and dismissed him with a present of a fine horse and proper clothes, for all that he had been wearing were torn to pieces. They parted in friendship.
Grettir rode to Ass in Vatnsdal and was welcomed by Thorvald, who asked him all about his encounter with Glam. Grettir told him everything and said that never had his strength been put to trial as it had been in their long struggle. Thorvald told him to conduct himself discreetly; if he did so he might prosper, but otherwise he would surely come to disaster. Grettir said that his temper had not improved, that he had even less discretion than before, and was more impatient of being crossed. In one thing a great change had come over him; he had become so frightened of the dark that he dared not go anywhere alone at night. Apparitions of every kind came before him. It has since passed into an expression, and men speak of "Glam's eyes" or "Glam visions" when things appear otherwise than as they are.
Having accomplished his undertaking Grettir rode back to Bjarg and spent the winter at home.
