Many stories were told of Thor's adventures, when visiting Jötunheim, the abode of the giants. In a drinking-match he tried to drain a horn of liquor, not knowing that one end of the horn reached the sea, which was appreciably lowered by the god's huge draughts. He sought to lift from the ground a large, gray cat, but struggle as he might, could raise only one of the animal's feet. What Thor took for a cat, however, was really the Midgard serpent, which, with its tail in its mouth, encircled the earth. In the last trial of strength Thor wrestled with an old woman, and after a violent contest was thrown down upon one knee. But the hag was in truth relentless old age, who sooner or later lays low all men. MYTH OF BALDER Most beautiful and best beloved of the Scandinavian divinities was Odin's son, Balder. He was represented as a gentle deity of innocence and righteousness. As long as he lived, evil could gain no real control in the world and the power of the gods would remain unshaken. To preserve Balder from all danger his mother Frigga required everything on earth to swear never to harm her son. Only a single plant, the mistletoe, did not take the oath. Then the traitor Loki gathered the mistletoe and came to an assembly where the gods were hurling all kinds of missiles at Balder, to show that nothing could hurt him. Loki asked the blind Höder to throw the plant at Balder. Höder did so, and Balder fell dead. The gods tried to recover him from Hel, the gloomy underworld, but Hel demanded as his ransom a tear from every living creature. Gods, men, and even things inanimate wept for Balder, except one cruel giantess--Loki in disguise-- who would not give a single tear. She said, "Neither living nor dead was Balder of any use to me. Let Hel keep what it has." "TWILIGHT OF THE GODS" Disasters followed Balder's death. An immense fire burned up the world and the human race. The giants invaded Asgard and slaughtered its inhabitants. Odin fell a victim to the mighty wolf Fenris. Thor, having killed the Midgard serpent, was suffocated with the venom which the dying monster cast over him. The end of all things arrived. This was the catastrophe which had been predicted of old--the "Twilight of the Gods." VALHALLA Besides the conception of Hel, the Northmen also framed the idea of Valhalla, [6] the abode to which Odin received the souls of those who had died, not ingloriously in their beds, but on the field of battle. A troop of divine maidens, the Valkyries, [7] rode through the air on Odin's service to determine the issue of battles and to select brave warriors for Valhalla. There on the broad plains they fought with one another by day, but at evening the slayer and the slain returned to Odin's hall to feast mightily on boar's flesh and drink deep draughts of mead. SUPERNATURAL BEINGS