“It is well known that he actually did this—various records state it, but those records do not say exactly where. The city, it is said, was founded somewhere in northern China—on the banks of a mighty river, is the wording, I believe; but there are several rivers in China answering that description, so the place might be almost anywhere. Then, years afterward, this man determined to conquer Japan. He fitted out a great armada and sailed for Nippon; but, as in the case of the famous Spanish Armada, a storm arose, and the entire fleet was wrecked. Hundreds of thousands of Chinese lost their lives, and Japan was saved. From that time onward, Genghiz Khan and the records relating to his treasure disappeared; and the city he founded, as well as the treasure, gradually passed into legend, the story being handed down from father to son by word of mouth. The man himself is supposed to have been cast ashore in Japan, where he adopted the dress and customs of the Japanese, in course of time becoming one of themselves, and winning great renown under another name—which I forget for the moment. But antiquarians insist that the name he assumed was but the Japanese rendering of his own former one of Genghiz Khan.

“At any rate, he never returned to China to recover his treasure; and legend has it that it still remained where it had been originally hidden. From time to time, expeditions have been formed for the purpose of searching for this legendary deserted city; but it has remained for us, Drake, to discover it, and to secure Genghiz Khan’s millions. This must be the town, this must be the treasure; for not otherwise can such an enormous hoard be accounted for. Nobody but the conqueror of Asia could ever have amassed so much.”

“That’s very interesting, Mr Frobisher,” said Drake, who had been listening intently; “and it’s a very comforting thought that all this belongs to us, if we can only get out. I suppose, in any case, we had better fill our pockets, lest we should not be able to get back here?”

“It would not be at all a bad idea, skipper,” returned Frobisher; and the two men slipped a few handfuls of the jewels into their pockets, as coolly as though they had been so many pebbles instead of gems worth several thousands of pounds.

“And now,” said Frobisher, “we had better turn our attention to getting out of this. I shall not feel comfortable until I have satisfied myself that this place is not going to prove a living tomb for us.”

They closed the lids of all the chests, and passed through what Frobisher called “the door-way of swords”, carefully closing the door behind them by means of a stick, lest the closing should again set the swords in motion. But it did not; the mechanism was evidently so arranged as only to operate upon the opening of the door.

“I do not think we need fear burglars here,” said Drake with a smile, as the door clanged shut.

The two men then decided to explore the remainder of the corridors, for unless an exit from one of them could be found there was little doubt that the treasure would prove as useless to them as it had been to Genghiz Khan himself.

The first passage they explored ended in a blank wall, as the three others had done; but in the next, to their great relief, they found another passage branching away to the left. This they followed for some distance, until they reached a spot where it branched into two. As there was no knowing which, if either, was the right one, they took the one on the left, as the previous opening had been on the left of the corridor, and followed it for a considerable distance. But they were doomed to disappointment; the corridor led nowhere. It simply came to what seemed to be a dead end, like the others. Frobisher felt the drops of sweat forming on his forehead, for it was beginning to look remarkably as though there was but one entrance to the vault—that through which they had come—and that all these other passages were either natural, or had been cut simply with the idea of mystifying and misleading possible intruders.

“Never say die” was, however, Frobisher’s motto, and Drake’s too, for that matter, so they tried back and entered the right-hand branch. But no better success attended them here, this ending in a blank wall also. There was now only one corridor untried, and with sinking hearts they proceeded to explore it.