All the giants set to work with a will. They brought great buckets of moist clay, and heaping them up into a huge mound, moulded the mass with their giant hands as a sculptor does his image, until they had made a man of clay, an immense dummy, nine miles high and three miles wide. "Now we must make him live; we must put a heart into him!" they cried. But they could find no heart big enough until they thought of taking that of a mare, and that fitted nicely. A mare's heart is the most cowardly one that beats. Hrungnir's heart was a three-cornered piece of hard stone. His head also was of stone, and likewise the great shield which he held before him when he stood outside of Stone City waiting for Thor to come to the duel. Over his shoulder he carried his club, and that also was of stone, the kind from which whetstones are made, hard and terrible. By his side stood the huge clay man, Möckuralfi, and they were a dreadful sight to see, these two vast bodies whom Thor must encounter. But at the very first sight of Thor, who came thundering to the place with swift Thialfi his servant, the timid mare's heart in the man of clay throbbed with fear; he trembled so that his knees knocked together, and his nine miles of height rocked unsteadily. Thialfi ran up to Hrungnir and began to mock him, saying, "You are careless, giant. I fear you do not know what a mighty enemy has come to fight you. You hold your shield in front of you; but that will serve you nothing. Thor has seen this. He has only to go down into the earth and he can attack you conveniently from beneath your very feet." At this terrifying news Hrungnir hastened to throw his shield upon the ground and to stand upon it, so that he might be safe from Thor's under-stroke. He grasped his heavy club with both hands and waited. He had not long to wait. There came a blinding flash of lightning and a peal of crashing thunder. Thor had cast his hammer into space. Hrungnir raised his club with both hands and hurled it against the hammer which he saw flying towards him. The two mighty weapons met in the air with an earsplitting shock. Hard as was the stone of the giant's club, it was like glass against the power of Miölnir. The club was dashed into pieces; some fragments fell upon the earth; and these, they say, are the rocks from which whetstones are made unto this day. They are so hard that men use them to sharpen knives and axes and scythes. One splinter of the hard stone struck Thor himself in the forehead, with so fierce a blow that he fell forward upon the ground, and Thialfi feared that he was killed. But Miölnir, not even stopped in its course by meeting the giant's club, sped straight to Hrungnir and crushed his stony skull, so that he fell forward over Thor, and his foot lay on the fallen hero's neck. And that was the end of the giant whose head and heart were of stone.