“There were nearly always, at the period when Carstow Castle was last rebuilt, subterranean passages built through which the occupants could escape in case of a surprise.”

“But, if there had been, would not the garrison have used these passages to escape by, when they were hard pressed, during the siege?”

“The surmise is that these passages, not having been used for many years, were believed to be impracticable. If they existed at all, this was probably the case, as I have searched the neighborhood thoroughly for nearly a mile in every direction round the castle, and I can find no trace of any opening.”

“And don’t you think what that proves is that there never was either passage or opening?”

“I do not. I believe that this unlucky Lord Hugh, knowing the heavy responsibility which lay on his shoulders, may have tried this means of escape, and been buried in the attempt with whatever he carried, whether jewels or money. How else—in what more reasonable manner can you account for his utter disappearance? For that neither he, nor the money he had been sent to fetch, ever reached the king, is certain.”

“I should think any manner of accounting for his disappearance likelier than that one,” said Rees. “And even if that were the true explanation, nothing would induce me to prowl about Lord St. Austell’s property to find out the truth of it.”

He said this haughtily, yet he waited when he had finished speaking, to hear Goodhare’s further arguments.

But the elder man had apparently decided that to argue against such flinty determination would be waste of breath. He turned away from the young man with a sigh.

“Well, Mr. Pennant, it is no use for me to try to persuade you into any course which you do not think strictly honorable, I know. I will, therefore, say no more about this, but only ask you to believe that I would never have breathed a word on the matter to you, if I had not myself believed it to be a suggestion which you might follow up to your own honor and Lord St. Austell’s profit.”

“I don’t wish to do anything to his profit,” said Rees passionately. “But, of course, I know you meant well, and—and thank you, and—and good-night.”