IV. ODIN AND THE ALL-WISE GIANT. Away across the great sea of blue waters that curled about the shores of Midgard, the dwelling place of Odin's earth-children, were the dark, frowning, rock-bound mountains, the castles of the terrible giants whom even the gods feared. One of these giants, Vafthrudner, was known among them as the All-wise. "He is our chief. He is wiser even than the gods of Asgard," the giants sometimes would thunder across the wide blue sea. And indeed it was true; for none among the gods had yet been able to answer his questions; nor could they; neither could they ask of him one that he could not answer. "We will bear the insolence of this giant no longer," said Odin to Frigg. "I will go to him, and the race of giants shall know that at last Wisdom dwells not in Jotunheim but in the golden city of the gods,--the glorious, shining city of Asgard." "Who comes?" thundered Vafthrudner as Odin approached his mountain peak. "It is I--a mere traveller. But as I chanced to be journeying through your country, I heard of your wonderful wisdom. In my own country, far away to the west, I too am accounted somewhat wise. Let us test each other and learn which of us is wiser." "Test each other! Learn which is wiser!" bellowed the great giant, his voice echoing and re-echoing across the sea, until the very walls of the golden hall upon Mt. Ida trembled and the earth-children in the valley below clung to each other in fear. "Whichever one fails forfeits his life. You know that, I trust," added Vafthrudner with a sneer. "I know," answered Odin quietly. "But let us begin. Night will come upon us, and I must reach my home while the Sun-god is still above us." "You will never see your home again; so it matters little whether we begin early or late. However, tell me, foolish, vain earth-child that you are, what river is it that flows between this home of the All-powerful giants and the home of the gods?" "The name of that river is Ifing," answered Odin. "And I can tell you more than that. Because it touches upon the shores of the city of the gods, the Ice King, Njord, has no power over it. His breath cannot freeze it. Year after year, Njord tries to imprison its sparkling waters that you giants may cross upon its crust and attack the shining city. But it will never freeze. You will never cross it. Asgard is forever safe." The giant dropped his mighty jaw. His eyes stared like great suns of fire. His terrible frame trembled. Down came his club upon the floor of his great castle. Again Ask and Embla paled with fear as the valley shook beneath their feet. "Who are you?" roared the All-wise giant. "Who are you that you know that river's name? Who are you that you dare tell me I shall never cross to its farther shore?"