"Certainly, if you'd like to," Claridge replied; "but they haven't been there--it is exactly as it was left. Only a lumber-room, you see," he concluded, flinging the door open.

A number of partly broken-up packing-cases littered about this room, with much other rubbish. Hewitt took the lid of one of the newest-looking packing-cases, and glanced at the address label. Then he turned to a rusty old iron box that stood against a wall. "I should like to see behind this," he said, tugging at it with his hands. "It is heavy and dirty. Is there a small crowbar about the house, or some similar lever?"

Mr. Claridge shook his head. "Haven't such a thing in the place," he said.

"Never mind," Hewitt replied, "another time will do to shift that old box, and perhaps, after all, there's little reason for moving it. I will just walk round to the police-station, I think, and speak to the constables who were on duty opposite during the night. I think, Lord Stanway, I have seen all that is necessary here."

"I suppose," asked Mr. Claridge, "it is too soon yet to ask if you have formed any theory in the matter?"

"Well--yes, it is," Hewitt answered. "But perhaps I may be able to surprise you in an hour or two; but that I don't promise. By the by," he added suddenly, "I suppose you're sure the trap-door was bolted last night?"

"Certainly," Mr. Claridge answered, smiling. "Else how could the bolt have been broken? As a matter of fact, I believe the trap hasn't been opened for months. Mr. Cutler, do you remember when the trap-door was last opened?"

Mr. Cutler shook his head. "Certainly not for six months," he said.

"Ah, very well; it's not very important," Hewitt replied.

As they reached the front shop a fiery-faced old gentleman bounced in at the street door, stumbling over an umbrella that stood in a dark corner, and kicking it three yards away.

"What the deuce do you mean," he roared at Mr. Claridge, "by sending these police people smelling about my rooms and asking questions of my servants?

What do you mean, sir, by treating me as a thief? Can't a gentleman come into this place to look at an article without being suspected of stealing it, when it disappears through your wretched carelessness? I'll ask my solicitor, sir, if there isn't a remedy for this sort of thing. And if I catch another of your spy fellows on my staircase, or crawling about my roof, I'll--I'll shoot him!"

"Really, Mr. Woollett----" began Mr. Claridge, somewhat abashed, but the angry old man would hear nothing.

"Don't talk to me, sir; you shall talk to my solicitor. And am I to understand, my lord"--turning to Lord Stanway--"that these things are being done with your approval?"

"Whatever is being done," Lord Stanway answered, "is being done by the police on their own responsibility, and entirely without prompting, I believe, by Mr. Claridge--certainly without a suggestion of any sort from myself. I think that the personal opinion of Mr. Claridge--certainly my own--is that anything like a suspicion of your position in this wretched matter is ridiculous. And if you will only consider the matter calmly----"

"Consider it calmly? Imagine yourself considering such a thing calmly, Lord Stanway. I _won't_ consider it calmly. I'll--I'll--I won't have it.

And if I find another man on my roof, I'll pitch him off!" And Mr.

Woollett bounced into the street again.

"Mr. Woollett is annoyed," Hewitt observed, with a smile. "I'm afraid Plummer has a clumsy a.s.sistant somewhere."

Mr. Claridge said nothing, but looked rather glum, for Mr. Woollett was a most excellent customer.

Lord Stanwood and Hewitt walked slowly down the street, Hewitt staring at the pavement in profound thought. Once or twice Lord Stanway glanced at his face, but refrained from disturbing him. Presently, however, he observed: "You seem, at least, Mr. Hewitt, to have noticed something that has set you thinking. Does it look like a clue?"

Hewitt came out of his cogitation at once. "A clue?" he said; "the case bristles with clues. The extraordinary thing to me is that Plummer, usually a smart man, doesn't seem to have seen one of them. He must be out of sorts, I'm afraid. But the case is decidedly a most remarkable one."

"Remarkable in what particular way?"

"In regard to motive. Now it would seem, as Plummer was saying to me just now on the roof, that there were only two possible motives for such a robbery. Either the man who took all this trouble and risk to break into Claridge's place must have desired to sell the cameo at a good price, or he must have desired to keep it for himself, being a lover of such things.

But neither of these has been the actual motive."

"Perhaps he thinks he can extort a good sum from me by way of ransom?"

"No, it isn't that. Nor is it jealousy, nor spite, nor anything of that kind. I know the motive, I _think_--but I wish we could get hold of Hahn.

I will shut myself up alone and turn it over in my mind for half an hour presently."

"Meanwhile, what I want to know is, apart from all your professional subtleties--which I confess I can't understand--can you get back the cameo?"

"That," said Hewitt, stopping at the corner of the street, "I am rather afraid I can not--nor anybody else. But I am pretty sure I know the thief."

"Then surely that will lead you to the cameo?"

"It _may_, of course; but, then, it is just possible that by this evening you may not want to have it back, after all."

Lord Stanway stared in amazement.

"Not want to have it back!" he exclaimed. "Why, of course I shall want to have it back. I don't understand you in the least; you talk in conundrums.

Who is the thief you speak of?"

"I think, Lord Stanway," Hewitt said, "that perhaps I had better not say until I have quite finished my inquiries, in case of mistakes. The case is quite an extraordinary one, and of quite a different character from what one would at first naturally imagine, and I must be very careful to guard against the possibility of error. I have very little fear of a mistake, however, and I hope I may wait on you in a few hours at Piccadilly with news. I have only to see the policemen."

"Certainly, come whenever you please. But why see the policemen? They have already most positively stated that they saw nothing whatever suspicious in the house or near it."

"I shall not ask them anything at all about the house," Hewitt responded.

"I shall just have a little chat with them--about the weather." And with a smiling bow he turned away, while Lord Stanway stood and gazed after him, with an expression that implied a suspicion that his special detective was making a fool of him.

In rather more than an hour Hewitt was back in Mr. Claridge's shop. "Mr.

Claridge," he said, "I think I must ask you one or two questions in private. May I see you in your own room?"

They went there at once, and Hewitt, pulling a chair before the window, sat down with his back to the light. The dealer shut the door, and sat opposite him, with the light full in his face.

"Mr. Claridge," Hewitt proceeded slowly, "_when did you first find that Lord Stanway's cameo was a forgery_?"

Claridge literally bounced in his chair. His face paled, but he managed to stammer sharply: "What--what--what d'you mean? Forgery? Do you mean to say I sell forgeries? Forgery? It wasn't a forgery!"

"Then," continued Hewitt in the same deliberate tone, watching the other's face the while, "if it wasn't a forgery, _why did you destroy it and burst your trap-door and desk to imitate a burglary_?"

The sweat stood thick on the dealer's face, and he gasped. But he struggled hard to keep his faculties together, and e.j.a.c.u.l.a.t.ed hoa.r.s.ely: "Destroy it? What--what--I didn't--didn't destroy it!"

"Threw it into the river, then--don't prevaricate about details."

"No--no--it's a lie! Who says that? Go away! You're insulting me!"

Claridge almost screamed.

"Come, come, Mr. Claridge," Hewitt said more placably, for he had gained his point; "don't distress yourself, and don't attempt to deceive me--you can't, I a.s.sure you. I know everything you did before you left here last night--everything."

Claridge's face worked painfully. Once or twice he appeared to be on the point of returning an indignant reply, but hesitated, and finally broke down altogether.

"Don't expose me, Mr. Hewitt!" he pleaded; "I beg you won't expose me! I haven't harmed a soul but myself. I've paid Lord Stanway every penny back, and I never knew the thing was a forgery till I began to clean it. I'm an old man, Mr. Hewitt, and my professional reputation has been spotless until now. I beg you won't expose me."

Hewitt's voice softened. "Don't make an unnecessary trouble of it," he said. "I see a decanter on your sideboard--let me give you a little brandy and water. Come, there's nothing criminal, I believe, in a man's breaking open his own desk, or his own trap-door, for that matter. Of course I'm acting for Lord Stanway in this affair, and I must, in duty, report to him without reserve. But Lord Stanway is a gentleman, and I'll undertake he'll do nothing inconsiderate of your feelings, if you're disposed to be frank.

Let us talk the affair over; tell me about it."