"And take this length of string. It will serve you for your belt of prowess."
"I will take it since you offer it in kindness, old dame, this ragged length of string."
"'Tis well indeed for you, Asa Thor, that I am mistress of magical things."
Thor put the worn length of string around his waist, and as he did he knew that Grid, the old Giantess, was indeed the mistress of magical things. For immediately he felt his strength augmented as when he put on his own belt of strength. He then drew on the mittens and took the staff that she gave him in his hands.
He left the cave of Grid, the old Giantess, and went to Gerriöd's dwelling. Loki was not there. It was then that Thor began to think that perhaps old Grid was right and that a trap was being laid for him.
No one was in the hall. He came out of the hall and into a great stone chamber and he saw no one there either. But in the center of the stone chamber there was a stone seat, and Thor went to it and seated himself upon it.
No sooner was he seated than the chair flew upwards. Thor would have been crushed against the stone roof only that he held his staff up. So great was the power in the staff, so great was the strength that the string around him gave, that the chair was thrust downward. The stone chair crashed down upon the stone floor.
There were horrible screams from under it. Thor lifted up the seat and saw two ugly, broken bodies there. The Giant's daughters, Gialp and Greip, had hidden themselves under the chair to watch his death. But the stone that was to have crushed him against the ceiling had crushed them against the floor.
Thor strode out of that chamber with his teeth set hard. A great fire was blazing in the hall, and standing beside that fire he saw Gerriöd, the long-armed Giant.
He held a tongs into the fire. As Thor came toward him he lifted up the tongs and flung from it a blazing wedge of iron. It whizzed straight toward Thor's forehead. Thor put up his hands and caught the blazing wedge of iron between the mittens that old Grid had given him. Quickly he hurled it back at Gerriöd. It struck the Giant on the forehead and went blazing through him.