"What is she doing--singing her lay?" asked the Scarecrow. "For-ward--march!" shouted the Tin Woodman, waving his axe, and the procession started just as Dorothy had once more grabbed Billina in her arms. "Isn't anyone going to get my egg?" cried the hen, in great excitement. "I'll get it," said the Scarecrow; and at his command the Sawhorse pranced into the bushes. The straw man soon found the egg, which he placed in his jacket pocket. The cavalcade, having moved rapidly on, was even then far in advance; but it did not take the Sawhorse long to catch up with it, and presently the Scarecrow was riding in his accustomed place behind Ozma's chariot. "What shall I do with the egg?" he asked Dorothy. "I do not know," the girl answered. "Perhaps the Hungry Tiger would like it." "It would not be enough to fill one of my back teeth," remarked the Tiger. "A bushel of them, hard boiled, might take a little of the edge off my appetite; but one egg isn't good for anything at all, that I know of." "No; it wouldn't even make a sponge cake," said the Scarecrow, thoughtfully. "The Tin Woodman might carry it with his axe and hatch it; but after all I may as well keep it myself for a souvenir." So he left it in his pocket. They had now reached that part of the valley that lay between the two high mountains which Dorothy had seen from her tower window. At the far end was the third great mountain, which blocked the valley and was the northern edge of the Land of Ev. It was underneath this mountain that the Nome King's palace was said to be; but it would be some time before they reached that place. The path was becoming rocky and difficult for the wheels of the chariot to pass over, and presently a deep gulf appeared at their feet which was too wide for them to leap. So Ozma took a small square of green cloth from her pocket and threw it upon the ground. At once it became the magic carpet, and unrolled itself far enough for all the cavalcade to walk upon. The chariot now advanced, and the green carpet unrolled before it, crossing the gulf on a level with its banks, so that all passed over in safety. "That's easy enough," said the Scarecrow. "I wonder what will happen next." He was not long in making the discovery, for the sides of the mountain came closer together until finally there was but a narrow path between