Caw made a slight inclination. "May I ask if the letter makes mention of Dr. Handyside and Miss Handyside, sir?"

"I am to trust them also," Alan replied, with a smile, "as well as Mr. Harvie."

"Thank you, sir. As you have seen, sir, I have ventured to trust Dr.

Handyside and Miss Handyside a bit of my own; in fact I was forced into so doing; and, though I had my master's word for it, if necessary, I am glad to hear it again from you, sir. As for Mr. Harvie, I take leave to hope we shall not require to trust him."

"Why on earth--?"

"Well, sir, he's a lawyer--"

"Good lord, Caw! What are you driving at? My uncle trusted him, and his letter--"

"If you'll excuse me, sir, you have just been telling me that Mr. Harvie knows next to nothing. Mr. Harvie, I beg to say, is a very nice gentleman, and as honest as any lawyer need hope for to be; but a lawyer is the last sort of human being we want to have in this business, sir."

"I'm afraid I don't quite grasp--" began Alan, amused by the other's earnestness.

"Well, sir, did you ever go to a lawyer to ask a question?"

"I can't say I have, that I remember."

"Then, sir, I have. I once asked a lawyer one question, and before he could, or would, answer it, sir, he asked me fifty, and then his answer was rot--beg pardon, sir--unsatisfactory. But what I mean is just this, sir. With all due deference to Mr. Harvie, we don't want outsiders asking questions. My master himself would have been against it, and I'm hoping you will understand why before very long, sir."

Alan sat up. "Before we go any further," he said, "will you tell me what you were looking for last night when you opened a drawer in that writing-table and--well, go ahead."

Caw took out his handkerchief and wiped his brow. "A green box, sir, that had been there a few hours earlier."

"The contents?"

"Diamonds, sir."

"What?"

"Diamonds, sir."

"I didn't know there were diamonds--except in that pendulum."

The other gave a faint sigh.

"Were those in the box of any great value?"

Caw moistened his lips. "Six hundred thousand pounds--"

"Oh, nonsense!"

"My master's words, sir."

"Then--why should they have been left lying there?"

"My master's orders, sir."

Alan opened his mouth, but found no speech. Said Caw: "You find it difficult to believe, sir, but there are other things just as difficult.

For instance, I was forbidden to use any violence to prevent the box being taken away--that is, taken away by certain parties. A horrid position for me, sir."

"Yes," a.s.sented Alan, absently. Presently he went on: "Don't imagine that I doubt anything you have said, Caw--except that the diamonds, whose value there must surely be some extraordinary mistake about, were in the box."

"But, Mr. Alan, I can swear they were! It was I who closed and put the box in the drawer for the last time, at my master's request. He had been admiring them, as he often did--"

"Who were the parties who were to be allowed to take the box?"

After a moment's hesitation,--"Mr. Bullard, sir, and Mr. Lancaster. They were the only persons besides myself who knew about the diamonds. I should tell you that my master showed them the diamonds that afternoon."

"Good G.o.d!" said Alan under his breath. Aloud: "Are you telling me that you suspect those two gentlemen of st--taking the box?"

"They came here late on the night after my master's death, with that object, sir."

"But the box was taken last night."

"I can't swear that it was they who were here last night, but I can swear they would have had the box on the night I have named, sir, but for Miss Handyside."

"Miss Handyside! ... Sit down, man, and tell your story. I'll try not to interrupt."

"Thank you, sir." Caw drew a chair from the wall; for once he was glad to be seated. He told his story in a crisp, straightforward fashion, avoiding side issues, and his listener heard him out in silence.

There was a pause before the latter spoke.

"You've given me something to think about, Caw," he said gravely.

"Meantime I'll ask only three questions. Have you any doubt that the box and its contents belonged entirely to my uncle?"

"None at all, sir. I remember his getting the box made--twelve years ago, I should say. Also, I knew he had made a great deal of money and was putting it into diamonds."

"He hadn't a duplicate box?"

"If he had, sir, I should have seen it. For the last two years of his life, I had to look after everything for him, even open his safe."

"I see. Now tell me: Did my uncle and Messrs. Bullard and Lancaster part on good terms that afternoon?"

Caw could have smiled with relief at the form in which the enquiry was put. "Why, sir," he said, with ill-suppressed eagerness, "they shook hands, and my master bade them a kind farewell. Mr. Lancaster was visibly affected."

"And they were back the next night!"

"Six hundred thousand pounds is a lot of money, sir."

Alan got up, strode to the window, and looked out for a minute's s.p.a.ce.

"What would you say, Caw," he asked, turning abruptly, "if I told you that for the last eighteen months I have regarded Mr. Bullard and Mr.

Lancaster as my best friends?"

The servant, who had risen also, replied respectfully: "I would say I was very sorry, sir."