A broad, bland face looked out from the corridor by the candles. He saw the silk robe and luminous, slant eyes of Wu Fang Chien. "So Captain Gray has come to Sungan," the mandarin said calmly, in English. "I have been expecting him----" "I did not bring him," chattered Delabar. "I gave the alarm----" Terror was in his broken words. Wu Fang Chien scrutinized the kneeling figure and his eyes hardened. "Who can trust the word of a mongrel?" he smiled, speaking in Chinese. "Slay the dog!" Delabar screamed, and tried to struggle to his feet. Two of the Buddhists stepped to his side and buried their weapons in his body. The scream ended in a choking gasp. Again the priests struck him with reddened knives. He sank to the floor, his arms moving weakly in a widening pool of his own blood. Wu Fang Chien had not ceased to smile. Gray jerked out his automatic. He fired at the priests, the reports echoing thunderously in the confined space. Two of the Buddhists sank down upon the body of Delabar; the third wheeled wildly, coughing as he did so. Gray laid the sights of his automatic coolly on Wu Fang Chien. The mandarin reached out swiftly. His wide sleeves swept against the candles, extinguishing them. Gray pressed the trigger and caught a glimpse of his foe's triumphant face by the flash that followed. Again he pulled the trigger. A click was the only answer. The chamber of the weapon had been emptied. And Gray had no more cartridges. He threw the useless automatic at the spot where Wu Fang Chien had been and heard it strike against the stone. He had no means of knowing if he had hit the mandarin with his last shot. He suspected that the trick of Wu Fang Chien had saved the latter's life. For a moment silence held the vault, a silence broken by the groans of the injured priests. The distant chant had ceased. Gray turned and sought the stairs behind him. He had made up his mind to go forward, not back. He would not try to leave Sungan without Mary Hastings. He had marked the position of the steps, and stumbled full upon them in the dark. Up the stairs he scrambled, feeling his way. What lay before him he did not know. A light appeared behind him. He heard footsteps echo in the vault. The glow showed him that he was at the top of the stairs. Into a passage he ran. It resembled the one that led from the well. By the sounds behind him he guessed that the priests were following him. Either Wu Fang Chien had decided that Gray had taken to the stairs, or the mandarin was sending parties down both exits. The feel of the air as well as the continued coolness told Gray that he was still underground. He ran forward at a venture. The passage gave into another vaulted room in which a fire gleamed in a brazier. The place was empty, but skins scattered around the brazier showed that it had been occupied not long since.