Beresford very gravely explained to the shuddering Chinaman what the result of an incautious step would be, and advised him to set a guard over the hole. Then the man was bundled out, and the door again made fast.

Mackenzie told what he had seen.

"Was the Old Man urging them to fight?" asked Forrester.

"No; he's done! Not a kick in him, seemingly. Without the Eye he's just a poor wee body. What they'll do I cannot tell; but we'll have another look for the stairway in the meantime."

Leaving Forrester still wrestling with the problem of the Eye, Mackenzie and Jackson ranged through the building from end to end in search of doors in the walls or trapdoors in the floors. After several fruitless minutes they were returning to the sanctum, and suddenly became aware that the noise outside had subsided.

"What's that mean?" cried Jackson.

The words had scarcely left his lips when the great door at the end of the aisle resounded under a loud and violent knocking.

"It means war, I doubt," Mackenzie answered. "Go and join Mr. Beresford, Bob. I'll bring the others with some of those arms you discovered. We must keep the Chinkies out at all costs."

He raced back to the inner room. Forrester had already left the head-dress, and seized an ancient pike.

"No, no, Dick!" cried Mackenzie. "Stick to your job, man. I'm no good at puzzles myself. We will need that Eye! Hamid, you and your chopper, away to the kitchen door. I doubt they won't come that way because the passage is narrow. If they do, make a bit use o' your chopper, then run and tell me. Awa' wi' ye! You, mister" (addressing Wing Wu), "lift yon musket, or a scimitar, or whatever ye like best, and come. Forget all about the priests and their conjuring tricks; you've got an arm; then fight like the de'il."