In The Days of Giants A Book of Norse Tales
Page: 37But the Midgard serpent was a more dangerous beast even than Death. Odin frowned when he looked upon this monster writhing before his throne. He seized the scaly length in his mighty arms and hurled it forth over the wall of Asgard. Down, down went the great serpent, twisting and twirling as he fell, while all the sky was black with the smoke from his nostrils, and the sound of his hissing made every creature tremble. Down, down he fell with a great splash into the deep ocean which surrounded the world. There he lay writhing and squirming, growing always larger and larger, until he was so huge that he stretched like a ring about the whole earth, with his tail in his mouth, and his wicked eyes glaring up through the water towards Asgard which he hated. Sometimes he heaved himself up, great body and all, trying to escape from the ocean which was his prison. At those times there were great waves in the sea, snow and stormy winds and rain upon the earth, and every one would be filled with fear lest he escape and bring103 horrors to pass. But he was never able to drag out his whole hideous length. For the evil in him had grown with his growth; and a weight of evil is the heaviest of all things to lift.
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 were104 made of twine.