The third monster was the Fenris wolf, and this was the most dreadful of the three. He was so terrible that at first Father Odin decided not to let him out of his sight. He lived in Asgard then, among the Æsir. Only Tŷr the brave had courage enough to give him food. Day by day he grew huger and huger, fiercer and fiercer, and finally, when All-Father saw how mighty he had become, and how he bid fair to bring destruction upon all Asgard if he were allowed to prowl and growl about as he saw fit, Odin resolved to have the beast chained up. The Æsir then went to their smithies and forged a long, strong chain which they thought no living creature could break. They took it to the wolf to try its strength, and he, looking sidewise, chuckled to himself and let them do what they would with him. But as soon as he stretched himself, the chain burst into a thousand pieces, as if it were made of twine. Then the Æsir hurried away and made another chain, far, far stronger than the first. "If you can break this, O Fenrir," they said, "you will be famous indeed." Again the wolf blinked at his chain; again he chuckled and let them fasten him without a struggle, for he knew that his own strength had been increased since he broke the other; but as soon as the chain was fastened, he shook his great shoulders, kicked his mighty legs, and--snap!--the links of the chain went whirling far and wide, and once more the fierce beast was free. Then the Æsir were alarmed for fear that they would never be able to make a chain mighty enough to hold the wolf, who was growing stronger every minute; but they sent Skirnir, Frey's trusty messenger, to the land of the dwarfs for help. "Make us a chain," was the message he bore from the Æsir,--"make us a chain stronger than any chain that was ever forged; for the Fenris wolf must be captured and bound, or all the world must pay the penalty." The dwarfs were the finest workmen in the world, as the Æsir knew; for it was they who made Thor's hammer, and Odin's spear, and Balder's famous ship, besides many other wondrous things that you remember. So when Skirnir gave them the message, they set to work with their little hammers and anvils, and before long they had welded a wonderful chain, such as no man had ever before seen. Strange things went to the making of it,--the sound of a cat's footsteps, the roots of a mountain, a bear's sinews, a fish's breath, and other magic materials that only the dwarfs knew how to put together; and the result was a chain as soft and twistable as a silken cord, but stronger than an iron cable. With this chain Skirnir galloped back to Asgard, and with it the gods were sure of chaining Fenrir; but they meant to go about the business slyly, so that the wolf should not suspect the danger which was so near.