After he had gone the lad resisted his curiosity for three whole weeks. He was dying to look in the fourth cellar and see what was there, but he dared not, for dear life’s sake. But at the end of the third week he was so curious that he could resist no longer. He opened the fourth door and went down the steps into the cellar, and there was a magnificent coal-black horse chained to a manger, and the manger was filled with red-hot coals. At the horse’s tail was a basket of hay.
“That is a cruel thing to do to an animal,” cried the lad, and he loosed the horse from the manger and turned him so he could eat.
Then the black steed spoke to him in a human tone. “You have done a Christian act,” said the horse, “and you shall not suffer for it. If the Troll Master finds you here when he returns he will surely take your life, and that must not be. Look over in yonder corner, and you will find a suit of armor and a sword. Put on the armor and take up the sword in your hand.”
The lad went over to the corner, and there lay the armor and the sword, but when he would have taken them up they were too heavy for him. He could scarce stir them. “Well, there is no help for it,” said the horse. “You will have to bathe in the caldron that is in the third cellar. Only so can you take up the armor and wear it.”
This the lad did not want to do, for he was afraid. “If you do not,” said the horse, “we will both of us lose our lives.”
Then the lad went back to the third cellar and shut his eyes and stepped down into the caldron, and though the waters in it bubbled and seethed they were as cold as ice and as bitter as death. He thought he would have died of cold, but presently he grew quite warm again. He stepped out from the caldron, and he had become the handsomest lad in the world; his skin was red and white, and his eyes shone like stars. He went back to where the horse was, and now he lifted the armor with ease, he had become so strong. He put it on and buckled the sword about him.
“Now we must be off,” cried the horse. “Take the briar whip and the stone and the jug of water and the flask of ointment. Then mount my back and ride. If the Troll Master finds us here when he returns, it will be short shrift for both of us.”
The lad did as the horse bade him; he took the briar whip and the stone, the jug of water and the flask of ointment, and mounted the black steed’s back; and the steed carried him up the steps and out of the house and fast, fast away through the forest and over the plains beyond.
After a while the black horse said, “I hear a noise behind us. Look and see whether any one is coming.”
The lad turned and looked. “Yes, yes; it is the Master,” said he, “and with him is a whole crowd of people.”