Mimer was a dwarf, belonging to a strange race of little folk called Nibelungs. The Nibelungs lived for the most part in a dark little town beneath the ground. Nibelheim was the name of this little town and many of the tiny men who dwelt there were smiths. All the livelong day they would hammer on their little anvils, but all through the long night they would dance and play with tiny little Nibelung women.
It was not in the little dark town of Nibelung that Mimer had his forge, but under the trees of the great forest to which Siegfried had been sent.
As Mimer or his pupils wielded their tools the wild beasts would start from their lair, and the swift birds would wing their flight through the mazes of the wood, lest danger lay in those heavy, resounding strokes.
But Siegfried, the hero-boy, would laugh for glee, and seizing the heaviest hammer he could see he would swing it with such force upon the anvil that it would be splintered into a thousand pieces.
Then Mimer the blacksmith would scold the lad, who was now the strongest of all the lads under his care; but little heeding his rebukes, Siegfried would fling himself merrily out of the smithy and hasten with great strides into the gladsome wood. For now the Prince was growing a big lad, and his strength was even as the strength of ten.
To-day Siegfried was in a merry mood. He would repay Mimer's rebukes in right good fashion. He would frighten the little blacksmith dwarf until he was forced to cry for mercy.
Clad in his forest dress of deerskins, with his hair as burnished gold blowing around his shoulders, Siegfried wandered away into the depths of the woodland.
There he seized the silver horn which hung from his girdle and raised it to his lips. A long, clear note he blew, and ere the sound had died away the boy saw a sight which pleased him well. Here was good prey indeed! A bear, a great big shaggy bear was peering at him out of a bush, and as he gazed the beast opened its jaws and growled, a fierce and angry growl. Not a whit afraid was Siegfried. Quick as lightning he had caught the great creature in his arms, and ere it could turn upon him, it was muzzled, and was being led quietly along toward the smithy.
Mimer was busy at his forge sharpening a sword when Siegfried reached the doorway.
At the sound of laughter the little dwarf raised his head. It was the Prince who laughed. Then Mimer saw the bear, and letting the sword he held drop to the ground with a clang, he ran to hide himself in the darkest corner of the smithy.