"It is in my way of thinking," he shouted, "that you come from Hong-Kong, that your name is no more Ah Li than mine is, that you are a foreign devil in disguise!"

Ah Wu opened his eyes in astonishment. He lifted both hands with fingers widespread. He looked like an old woman who has seen a ghost.

"There is some mistake!" he cried.

"This boy," roared Cheong-Chau, "is a foreigner."

His voice was so loud that it carried to the farther end of the room. Everyone heard his words, and those who were not asleep raised themselves upon their elbows to ascertain what the disturbance was about. Behind the embroidered curtains the mighty Ling, who had been listening to all that was said, crouching like a cat, rose stealthily and slowly to his feet. He was like a great beast of prey that suddenly scents danger. It was as if he stretched the great muscles of his body, preparatory to action.

"You are a foreigner!" cried Cheong-Chau.

Frank knew not which way to look. He had put down the tray upon a small lacquer table by the side of Cheong-Chau's couch. The brigand still held him tightly by a wrist. Realising that he could not deny the truth of the man's words, the boy made a foolish, headstrong effort to escape. With a quick wrench, he freed his arm, and turned upon his heel with the intention of dashing down the steps. Since subterfuge had failed, he felt that he had nothing else to rely upon but physical agility.

He had almost reached the head of the stairs when Ah Wu stretched forth a hand to detain him. It is strange that the boy's exposure should have been brought about by Ah Wu, in whose interests it was for the deception to continue--at least, whilst Cheong-Chau was in the house.

Ah Wu attempted to seize the boy by a shoulder, and failing in this, he clutched at Frank's pigtail, which was flying out behind him. Needless to say, as the boy plunged down the stairs, he left behind him his false pigtail in the hands of the dumbfounded Ah Wu. Before he could stop himself, Frank was at the bottom of the stairs, and there, for the first time, he remembered that he would have to pass Ling at the outer door.

For the brief space of a moment, Frank looked about him like a hunted beast. He could see no way of escape. Ling, he knew, was in front of him, though not visible. The back door was locked. There were no windows in the lower room. On the other hand, escape from one of the balcony windows was impossible, for Cheong-Chau and his three followers stood at the stair-head. The voice of Cheong-Chau filled the room, uttering, in a weird, sing-song voice, a kind of triumphant pæan.