"He is gone—and the key, too. The key is gone," Yo Seno's voice rose almost to a wail.

"Quick, then, to the apartment where the girl is kept," cried the first speaker, doubtless the officer of the guard, and almost at once I heard them hasten from the apartment.

The girl at my side moved a little and I heard a low laugh. "They will not find the key," she said.

"Why?" I asked.

"Because I have it," she replied.

"Little good it will do us," I said ruefully. "They will keep the door well guarded now and we cannot use the key."

Phao laughed again. "We do not need the key," she said. "I took it to throw them off the track. They will watch the door while we enter elsewhere."

"I do not understand," I said.

"This corridor leads between the partitions to the room where the prisoner is kept. I know that because, when I was a prisoner in that room, Yo Seno came thus to visit me. He is a beast. I hope he has not visited this girl—I hope it for your sake, if you love her."

"I do not love her," I said. "She is only a friend." But I scarcely knew what I was saying, the words seemed to come mechanically for I was in the grip of such an emotion as I never before had experienced or endured. It had seized me the instant that Phao had suggested that Yo Seno might have visited Tavia through this secret corridor. I experienced a sensation that was almost akin to a convulsion—a sensation that left me a changed man. Before, I could have killed Yo Seno with my sword and been glad; now I wanted to tear him to pieces; I wanted to mutilate him and make him suffer. Never before in my life had I experienced such a bestial desire. It was hideous, and yet I gloated in its possession.