Stuart cautiously turned his eyes toward the open stair.

On the platform above stood a bent old hag whose witch-eyes were searching the place keenly! With a curiously lithe step, for all her age, she descended, and standing behind Ah-Fang-Fu tapped him on the shoulder and pointed to the outer door. He stood up and shuffled across, went up the four steps and unbarred the door.

"Tchee, tchee," he chattered. "Pidgin make a look-out."

He went out and closed the door.

"Something happens!" whispered Max.

A gong sounded.

"Ah!"

The old woman approached the matting curtain hung over a portion of the wall, raised it slightly in the centre—where it opened—and disappeared beyond.

"You see!" said Stuart excitedly.

"Yes! it is the audience-chamber of 'The Scorpion'!"