The Prince Who Worked as Satan's Servant and Saved the King from Hell (Lithuanian: Apė karaliūnaitį, kur pas šėtoną slūžyjo ir karalių išgelbėjo iš peklos) is a Lithuanian fairy tale collected by German linguists August Leskien and Karl Brugmann. Andrew Lang included it in The Grey Fairy Book under the title The Magician's Horse. Synopsis A king's three sons went hunting, and the youngest got lost. He came to a great hall and ate there. Then he found an old man, who asked him who he was. He told how he had become lost and offered to enter his service. The old man set him to keep the stove lit, to fetch the firewood from the forest, and to take care of the black horse in the stables. The man was a magician, and the fire was the source of his power, though he did not tell the prince. One day, the prince nearly let the fire go out, and the old man stormed in. Frightened, the prince threw another log on it and nursed it back. The horse told him to saddle and bridle it, to use an ointment that made his hair like gold, and to pile all the wood he could on the fire. This set the hall on fire. The horse then told him to take looking-glass, a brush and a riding-whip, and ride off on him. The magician chased on a roan horse, but the prince threw down the looking glass, the horse cut its feet on it, and the magician had to go back to put new shoes on him, but then he chased the prince again. The horse had the prince throw the brush on the ground. This produced a thick wood, and the magician had to go back and get an axe to cut through it, but then he chased the prince again. The prince threw down the whip; it became a river, and when the magician tried to cross it, it put out his magical fire and killed him. The horse told the prince to strike the ground with a willow wand. A door opened, making a hall in which the horse stayed, but he sent the prince through the fields to take service with a king. He wore a scarf to hide his golden hair. He worked as a gardener and every day brought half his food to the horse.