be overheard, and we can never make sure of that in a club smoking-room.'

'That will suit me very well, Mr. Singleton, but don't hurry over your lunch; you will see me somewhere about when you are coming down the steps. I have just time to stroll down the Mall and back by Birdcage Walk.'

'Well, we will say in half-an-hour from the time you leave us.'

'This is another proof, Mr. Hawtrey, that our suspicion that Truscott is at the bottom of it all is well founded,' Captain Hampton said, when he had heard the story. 'It must have been somebody who was accurately acquainted with your affairs; some one who knew that Mr. Singleton was an intimate friend; so intimate that your daughter would be likely to go to him were she in any trouble, and that he would be likely to assist her.'

'It is certainly another link in the chain,' Mr. Hawtrey agreed.

'I would give a thousand pounds if we could lay our hands on the fellow,' Mr. Singleton exclaimed fiercely.

'But if we could find him, Singleton, we could not touch him; you and I, Ned, may be morally certain that he is at the bottom of all this, but we have not the remotest shadow of evidence on which a magistrate would grant a warrant for his arrest. If we found him, he would snap his fingers in our face.'

'You forget, Mr. Hawtrey,' said Ned, 'if we find him we are pretty sure of being able to find this woman. I do not say we are certain to find her, because we know nothing of their relations to each other; perhaps they are only united to carry out this piece of swindling. Truscott is shrewd enough to see that it would be better for them to part; perhaps they kept together until they went over to Hamburg, and sold the diamonds; then she might go over to Paris, and he to America, or they may have gone to any other two widely separated places in the world. If they have kept together, and are still in England, I should say they are most likely to be at present in some quiet and respectable lodgings at some large watering-place, where they pass as father and daughter. I quite agree with you in what you say that the fact of these two fresh robberies altogether alters the case, and that you can never calculate upon being free of annoyance, still I should say that you are safe for some little time. They ought to be satisfied with what they have got, and will naturally wait to see whether there is any stir made, and what comes of it, before repeating the same game. Have you seen Levine again?'

'Yes, we were there an hour and a half ago, and I am glad to say these last occurrences have completely changed his opinion of the case. We left him going into the matter with Danvers, who is coming to dine with us this evening, and will tell us what they think as to fighting Gilliat.'

'What does Halliburn think of it?' Captain Hampton asked, suddenly. 'After all, everything will depend, I should think, upon his opinion.'

'On that point, fortunately, we have not got to consult him, Ned—Dorothy has definitely broken off the engagement. As soon as we heard from Gilliat of the robbery, she declared that it was positively impossible that the matter should go on, and I quite agreed with her decision.'

Captain Hampton made no remark for a minute or two.

Mr. Hawtrey presently went on. 'I want you to come round to dinner too, Ned. There will only be Singleton and Danvers, and it will be a sort of family council.'

'Thank you, Mr. Hawtrey,' Captain Hampton replied, after a pause, 'I think I would rather not come. I have been unfortunate enough to offend Miss Hawtrey deeply already, and I don't think that my presence at such a council would be in any way agreeable to her, and that being so, I need hardly say that it would not be pleasant to me.'

'Tut, tut, lad, that is all nonsense. For a moment I was inclined to doubt her myself; those fellows' story seemed so terribly straight-forward that I was completely taken aback. Singleton let himself be led to believe that she had got into some terrible scrape, and how could you disbelieve your eyes more than he could? She will soon get over her little touchiness.'

'I rather doubt it, Mr. Hawtrey. I think it natural that she should feel very much hurt. Just at present my taking any part in the affair would, I feel sure, be very distasteful to her. But when you say to me, "Dorothy has quite got over her indignation and wants you to come and have a chat with her," I shall be delighted to come. In the meantime I would rather give no opinion whatever as to the matter, but I shall, nevertheless, work quietly in my own way and do my best to discover some clue as to the movements of this man. I have the great advantage of knowing him by sight, which no detective would do. I am certain I am not likely to make any mistake as to the woman. Please don't mention to Dorothy that I am taking any further part in the affair. Levine will, I should think, advise you to put the matter into the hands of detectives, and I shall be glad to know from time to time what their opinion is and whether they have gained any clue as to their whereabouts. I would suggest that you should get from Allerton two or three small pieces of each of the silks that were taken; should there be anything at all peculiar in colour or pattern, it might be an aid to the detectives.'

'You are right there, Ned,' Mr. Singleton said; 'an adventuress of that kind, having got hold of some handsome silks, would not be able to forego the pleasure of having them made up and showing off in them. Do you mean to pay Allerton, Hawtrey?'

'I gave him a cheque at once. I told him that this was one of several robberies that had been committed by some woman personating my daughter, but that it would be so unpleasant to go into the matter, and so difficult to find the thief, that I would rather pay the money at once. In addition to the patterns of the dresses I will get him to have some sketches made of the mantles. They will probably have some others like them, but if not they are sure to know the exact particulars of them. There may be some slight peculiarity about the fashion of the things that would help a detective.'

'I think you would do even better than that,' Captain Hampton said, 'if you got a dozen of your daughter's daguerreotypes; they would assist detectives much more than anything else in making inquiries; they would only have to show them to a waiter in any hotel where this woman stopped, and they could hardly fail to be recognised at once, for she would certainly attract attention wherever she went. Dorothy gave me one a few days after I came back, but as I should be very sorry to have that knocked about I should be glad if you would let me have another.'

'That is an excellent idea, Ned. I will order a couple of dozen of her photos this afternoon from Watson, who took the last she had done. Well, I am sorry you won't come and dine with us; though I don't know but that it is better for you to leave her to herself for a short time. I admit that she has not quite got over it yet, but I expect that she will come round before long. Which way are you going?'

'I think I shall sit where I am for a bit, Mr. Hawtrey; it is very pleasant here in the shade, and I want to think over all that you have been saying. I must try and see what I had best do next.'

He got up, however, half an hour later with an impatient exclamation.

'What is the use of my wasting my time here? I was three weeks looking for the fellow before, and Slippen found him a few hours after taking the matter in hand. I will take his advice anyhow. He is more likely to have an idea as to what a fellow like this would do under the circumstances than I could have.'

'I have been doing nothing more about that case, Captain Hampton,' the detective said, when the caller was shown in by a boy who reminded him strongly of Jacob; 'I wrote to Mr. Hawtrey that the man had altogether disappeared, but that I would have the racecourses watched, and that if he turned up at any of them we would let him know. That is three weeks ago, and he