Dick grinned. He had got the plan securely. The effort he was about to make was just the one to delight him. It appealed to his merry mind, for the idea was so bold that there was huge excitement in the attempt to carry it out. How he longed to bring about the discomfiture of this rascal, for David had told him enough to allow him to gather what had happened, though it was hard to believe that the man who had married his friend's stepmother could from England, so far away, control the action of an accomplice in China. Chang was an out and out ruffian, he told himself, but nothing in comparison with Ebenezer Clayhill.

'Righto!' he smiled. 'I'm ready. You bet, I'll be his haughtiness himself.'

'Enter,' came a sharp summons from inside, as David knocked. 'Enter, and welcome.'

'I don't think,' muttered Dick, with a grin. 'Open it, David, my boy.'

It would have done the Professor's jovial heart a world of good could he have seen how the young fellow carried himself. It seemed that Dick was a born actor. He waited tranquilly for David to push the door open, and then, with hands tucked well within his sleeves, and his magazine pistol secured within one of them, he advanced pompously and slowly, casting a single glance at the individual who had summoned him to enter. It was Chang without a doubt. He had risen from the table pen in hand—for he had been writing—and stood aside to allow free passage to his Excellency, kow-towing deeply.

'His Excellency, Tsu-Hi,' announced David, mimicking as well as he was able the voice of the Tartar he represented.

'Enter, and welcome to His Highness.'

Chang kow-towed even more deeply, turning as Dick passed him. A second later he was sprawling on the floor, for David had leaped upon him, gripping him by the neck with both hands and capsizing him completely. As for Dick, he turned instantly, raced to the door and closed it, and then very coolly presented his weapon at the head of the individual to whom he had made a visit.

'Just one word,' he whispered, in execrable Chinese, 'and there won't be a Chang left to worry us. Just one little word, my friend.'

'Get up!' commanded David, for Chang had become of a sudden but a limp heap of terrified humanity. 'Don't worry him with your Chinese, dear boy. He understands and speaks English as well almost as we do. But listen to this, you rascal. If you stir an inch or make a sound you'll be shot without mercy. Now, stand there. No humbug, mind you.'