This done, Gray left the stable for a survey of the field. The inn yard was still quiet. Even the street on the further side was tranquil. Turning back, he helped the coolie place Delabar astride a mule, and tied the scientist's feet firmly together under the animal's belly. Throwing a blanket over him, Gray gave the word to start. The Chinaman went ahead by the first animal, for Gray did not want to trust him out of sight. He followed beside the mule that carried Delabar, giving directions as to their course. "The loaded wagon at the inn will be a fair puzzle to the searching party from the temple," he thought. "We could never get free of Liangchowfu with the carts. Here's hoping my friend Mirai Khan was right when he said there was a hole in the city wall behind the temple." It was a slender chance--to work their way through the alleys in the darkness. But, as Gray reasoned, it was the only thing to do. And two things were in their favor. The inn was undoubtedly watched, front and back. The priests' spies would see the mules leaving, and probably decide the coolies were making off with them--especially as the wagons were still in the stable yard. Also, the attention of the Liangchowfu population--or the most dangerous part of it--would be centered on the temple and the divination in progress there. Gray had reasoned correctly. By following the odorous and muddy by-ways that he and Delabar had investigated previously, he was able to gain the wall without attracting attention. Here the lights were fewer, and the trees sheltered them. The coolie, who was badly frightened, could give Gray no information as to the location of the break in the city wall. It was useless, of course, to try a dash for the city gates which would be guarded. Gray pushed ahead steadily at a slow trot, scanning the bulk of the wall for signs of an aperture. They were well behind the temple by now, at the further side of the garden they had entered the night before. So far they had been very lucky, but Gray's heart sank as he sighted buildings ahead--a huddle of thatched huts, evidently in the poorer section of the town. Still no break in the stone barrier was visible. "Keep on," he whispered to the coolie, "and don't forget if we are discovered you'll be caught in the act of aiding me to escape." The man broke into a faster trot, with a scared glance over his shoulder. The sound of the temple gongs was louder, swelling angrily in the wind. Voices came from the huts ahead, and Gray fancied that he heard shouts in the street they had left. He swore softly. If only they could find the exit he was seeking! Once out on the plain beyond Liangchowfu, their chances of escape would be good. If only Delabar had kept sober---- He swung around alertly at the sound of horses' hoofs. In the faint light a mounted man appeared beside him.