Like angry fiends they would seize upon the leaves and tear them from the trees. The tiny flowers hung their heads and shriveled with fear when they approached; nor were the frost giants content until the whole earth lay brown and cold and barren beneath their hand. Then, all beauty swept away, they covered over all, their silent sheet of snow, and stood, grim sentinels, cold and hard, guarding their work of destruction and desolation. There was deep silence when the frost giants reigned; no sound was heard save the sad moaning among the branches of the forest, as the firs and pine trees bent towards each other and whispered of the days when Baldur shone upon them. But the frost giants never yet had conquered; never yet had Baldur failed to return to the trees and flowers and rivers and streams that he loved so well. At his first step upon the ice, a crackling sound was heard--a sound which awoke the sleeping earth and warned the frost giants to flee to their mountains. "Baldur has come! Baldur has come!" the birds and every living thing would cry; and a rustle and sound of music would thrill the waiting earth. Then came always a mighty battle. The frost giants lashed the waters and rocked the trees. The winds shrieked, the sky grew cold and black. The snows fell and the driving rain beat against the earth. But Baldur, the quiet, firm, loving Baldur always conquered. How, he himself could hardly tell. He did not fight; he did not storm. He only bent his shining face over the struggling earth and waited. Little by little, when their fury was spent, the frost giants, defiant but conquered, retreated. The great sheets of ice broke up, and the rivers rushed forth singing their mad songs of joy and freedom. The snows faded away, and one by one the little flowers peeped forth again. All now was happiness and warmth and fragrance; the flowers bloomed; the fruits turned mellow; the sky grew warm; and the pines and fir trees breathed deep sighs of rest and contentment that once again sweet Baldur was among them. And not only did the frost giants hate Baldur, but they hated Frey, who often robbed them of the fruits and flowers they loved to breathe their bitter breath upon and kill. Thor, too, they hated; for with his magic hammer, he now, more than ever, loved to bring forth the lightnings and the thunder, and to send down upon the earth refreshing showers of soft, warm rain. As the frost giants scowled down from their icy castles, and saw the little flowers turn up their happy faces to drink in the sparkling drops, and heard the birds trill their happy songs, and smelled the rich fragrance of the damp firs and pines, they roared with anger and vexation. "Let us revenge ourselves upon this insolent Thor who robs us of our rights," they bellowed to each other across the great valleys that separated their giant peaks. "We can do nothing so long as he holds the magic hammer," growled one. "We must steal the hammer from him," shouted another.