At nine o'clock Captain Hampton called at Chester Square and was shown into the drawing-room, from which, as previously arranged, Mr. Hawtrey had dismissed Mrs. Daintree, telling her that he had some private matters to discuss with Ned Hampton.  
Mrs. Daintree had retired tearfully, saying that for her part she preferred hearing nothing about this painful matter—meaning that of the letters, for she was ignorant of the later development.
 
Dorothy looked flushed and feverish. Her eyes were large and brilliant, and there was a restlessness in her manner as she shook hands with her old friend.
 
'Well, Ned,' she asked, with an attempt at playfulness, 'what is your verdict—guilty or not guilty?'
 
'You need not ask me, Dorothy. Even the evidence of my own eyes would scarcely avail to convince me against your word.' Then he turned to her father. 'I have done nothing but think the matter over since you left me, and I can see but one solution—an utterly improbable one, I admit—but I will not tell you what it is until I have spoken to Miss Hawtrey. Would you mind my putting a question or two to her alone?'
 
'Certainly not, Ned,' said Mr. Hawtrey, rising.
 
But Dorothy exclaimed: 'No, no, father, I will not have it so. I don't know what Captain Hampton is going to ask me, but nothing that he can ask me nor my answers could I wish you not to hear. Please sit down again. There shall be no mysteries between us, at any rate.'
 
'Perhaps it is best so,' Captain Hampton agreed, though he felt the ring of pain in the girl's voice at what she believed to be a sign that he doubted her. 'I am willing, as I said just now, to disbelieve the evidence of my own eyes on your word. I am determined to believe you innocent. It is impossible for me to do otherwise. But there is one matter I want cleared up. On the fifteenth of last month—that is the day on which these things were missed—I saw a lady so exactly like you in face and in dress that I should under any other circumstances be prepared to swear to her, speaking to the man Truscott, in the Liverpool Road, Islington. This was at about half-past four in the afternoon.'
 
A look of blank wonderment passed across Dorothy's face as he spoke, and then changed into one of indignation.
 
'I was never in Islington in my life, Captain Hampton; I never heard the name of Liverpool Road that I know of. I have never seen this man, Truscott, since that day at Epsom. And you have believed this? You believe that I would meet this man alone, for the purpose, I suppose, of bribing him to silence? I have been mistaken in you altogether, Captain Hampton. I thought you were a friend.'
 
'Stop, Dorothy,' her father said, authoritatively, as with her head erect she walked towards the door, 'you must listen to this; it is altogether too important to be treated in this way. We must hear what Captain Hampton really saw, and he will tell us why he did not mention the fact to me before. Sit down, my dear. Now, Captain Hampton, please tell it to us again.'
 
Ned Hampton repeated his story, and then went on,
 
'You know I went suddenly out of town, Mr. Hawtrey. That I had been mistaken never once occurred to me. Up to that time I had never for an instant doubted your daughter's assertions that she knew nothing as to any letters in the possession of Truscott. That morning, as you may remember, I mentioned before you the name of the place where he was to be found, and when, as I thought, I saw her with him, it certainly appeared to me possible that after the dread Miss Hawtrey expressed of appearing in a public court to prosecute him, she might, in a moment of weakness, have gone off to see the man, to warn him of the consequences that would ensue if he continued to persecute her, and to tell him that unless he moved he would in a few hours be in custody. I thought such an action altogether foreign to her nature, but I own that it never for a moment occurred to me to doubt the evidence of my own eyes, especially as the person was dressed exactly as your daughter had been when I saw her that morning. That the person I saw was not her I am now quite ready to admit. In that case it is morally certain that the person who took away those jewels was also not her; and this strengthens the idea I had before conceived, and which seemed, as I told you, a most improbable one, namely, that there is another person who so closely resembles your daughter that she might be mistaken for her, and, if so, this person is acting with the man Truscott. Should this conjecture be the true one it explains what has hitherto been so mysterious. The letters were designed to injure your daughter in public estimation, and to prepare the way for this extraordinary robbery, which would enrich Truscott as well as gratify his revenge. What do you think, Mr. Hawtrey?'
 
'The idea is too new for me to grasp it altogether, Ned. Until now there seemed no possible explanation of the mystery. This, certainly, strange and improbable as it is, does afford a solution.'
 
'Well, father, I will leave you to talk it over,' Dorothy said, rising again, 'unless Captain Hampton has seen me anywhere else and wishes to question me about that also. And I think, father, that it will be much better in future to put the matter altogether into the hands of a lawyer; it would be his business to do his best for me whether he thought me innocent or guilty. At any rate, it is more pleasant to be suspected by people you know nothing about, than by those you thought were your friends.' Then without waiting for an answer she swept from the room.
 
'No use stopping her now,' her father said, shrugging his shoulders; 'it is not often that I have known Dorothy fairly out of temper from the time she was a child, but when she is it is better to let her cool down and come round of herself.'
 
'It will be a long time before she comes round as far as I am concerned,' Captain Hampton said. 'I am not surprised that she should be indignant that I should have suspected her for a moment, but I don't see how I could have helped it. I saw her, or someone as much like her as if it was herself in a looking-glass, talking to this man Truscott, the very day when we had for the first time found out where we were likely to lay hands on him. What could anyone suppose? I did not think for a moment that she had done anything really wrong, or even, after what she had said, that he could hold letters of any importance; but she had evidently so great a dread of publicity that, as I say, it did strike me she had gone to meet him in order to warn him, and perhaps to get back any trumpery letters he might have had, stolen from her or from some one else. I did think this up to the time when you told me of this affair at the jeweller's. That seemed so utterly and wholly impossible that I became convinced there must be some entirely different solution, if we could but hit upon it, and the only idea that occurred to me was that of there being some one else exactly like her, and that this person, whoever she is, has been used by Truscott both to injure your daughter and to obtain plunder.'
 
'I don't see how you could have helped suspecting as you did, when you saw Truscott speaking with some one whom you did not doubt being Dorothy. Had I been in your place and witnessed that meeting, it seems to me that I must have doubted her myself. Though I am her father, I own that I did doubt her for a moment this morning when I heard the story at Gilliat's; but let us leave that alone for a moment, Ned; the pressing question is, what am I to do?'
 
'I will give no opinion,' Captain Hampton said firmly; 'that must be a question for you and Miss Hawtrey to decide. If my conjecture is right, and this man, Truscott, and some woman closely resembling your daughter are working to obtain plunder on the strength of that likeness, you may be sure that this successful coup they have made will only be the first of a series. On the other hand, you have not a shadow of evidence to adduce against Gilliat's claim; there is simply her assertion against that of two or three other people, and if he sues you, as, of course, he will if you do not pay, it seems to me certain that a jury would give the verdict against you—unless, of course, we can put this other woman and Truscott into the dock. Should such a verdict be given, although some might have their doubts as to this extraordinary story, the public in general would conclude that Miss Hawtrey was a thief and a liar. There is no doubt that your daughter's advice is the one to be followed, and if I were you I would go to Charles Levine, the first thing in the morning, lay the whole case before him, and put yourself in his hands.'
 
'I will do so, Ned. Should I mention to him that you saw her, as you thought, with Truscott?'
 
'That must be as you think fit, sir. I don't think I should do so unless it were absolutely necessary. He does not know your daughter as we do, and would infallibly put the worst construction upon it. I should confine myself to the story of the letters and the jewels, stating that you believe there is a connection between them, and that, as you implicitly believe Miss Hawtrey's word, the only conclusion you can possibly come to is that the person who visited Gilliat's was some adventuress bearing a strong resemblance to her, and trading on that resemblance.'
 
'But how about the dress, Ned?'
 
'If it was, as I take it, a preconceived plot, carefully prepared, one can readily conceive that Miss Hawtrey's movements had been watched and that a dress and bonnet closely resembling hers had been got in readiness.'
 
'It is an ugly business, Ned,' Mr. Hawtrey said, irritably. 'You and I believe Dorothy to be innocent, but the more one looks at it the more one sees how difficult it will be to persuade other people that she is so. However, I will see Levine in the morning. He has had more difficult cases in his hands than any man living.'
 
'That is the best thing you can do, sir. Now I will say good-night. You know where I am to be found, and I must ask you to write to me there and make an appointment for me to meet you if you want to see me. I shall still do what I can in the matter, and shall spare no efforts to endeavour to trace this man Truscott, and if I can find him it is probable that I shall be able to find the woman; but please do not let Miss Hawtrey know that I am taking any further part in the matter. She is deeply offended with me, and from her point of view this is perfectly natural. She thinks I ought to have trusted her and believed in her in spite of any evidence whatever, even that of my own eyes, and she is naturally extremely sore that one whom she regarded as a close friend should not have done so. I regret it deeply myself, but seeing what I saw——'
 
'You could not help doing so, Ned,' Mr. Hawtrey broke in warmly; 'as I told you I should have doubted her myself. Do not worry yourself about that. When she thinks it over she will see that you were in no way to blame.'
 
'That will be a long time first,' Captain Hampton said, gravely; 'situated as she is, and harassed as she has been, it is very difficult to forgive a want of trust on the part of those in whose faith and support you had implicit confidence. I shall be very glad if you will let me know what Levine advises.'
 
'That I will certainly do. I will write to you after I have seen him and had a talk with Dorothy. There is the affair with Halliburn, which complicates the whole question confoundedly. I wish to goodness he would start for a trip to China and not come back until it is all over. It is lucky that that they have got a serious debate on to-night in the Upper House, and that he was, as he told us when he called this afternoon, unable to go to the Alberys; if it hadn't been so he would have been here by this time, to inquire what had occurred to make us send our excuses at the last moment. He will be round here the first thing after breakfast. Well, good night, Ned, if you must be going.'
 
On reaching his lodgings Captain Hampton found a boy sitting on the doorstep.
 
'Halloa,' he said, 'who are you? Out of luck, and want something to get supper with, I suppose?'
 
'I wanted to speak to you, Captain,' the boy said, standing up.
 
'Why, you are the boy from Slippen's; have you got any news for me?'
 
'No, Captain, I ain't come on his account, I have come on my own. I have left Slippen for good.'
 
'Well, come up stairs; we can't talk at the door. Now what is it?' he asked, as he sat down.
 
'Well, sir, it is just this: I have left Slippen. You see, it was this way: I was a-watching a female party and she wur a good sort. I got up as a crossing sweeper, and she never went across without giving me a penny and speaking kind like, and one day she sent me out a plate of victuals; so I didn't much like the job, and when Slippen wanted me to say I had seen a bit more than I had, I up and told him as I wasn't going to. Then he gave me a cuff on the head and I gave him some cheek, and he told me to take myself out of it and never let him see my face again, so you see here I am.'
 
'I see you are. But why are you here?'
 
'Well, you see, Captain, you allus spoke nice to me over there, and I says to myself, "If I was ever to leave the governor, that is just the sort of gent as I should like to work for." I can clean boots with any one, and I could run errands, and do all sorts of odd jobs, and if you still want to find that chap I was after I would hunt him up for you all over London.'
 
'You are quite sure, Jacob, that you have done with Mr. Slippen? I should not like him to think that I had taken you away from him.'
 
'I ain't a-going back to him no ways,' the boy said, positively, 'not even if he would have me; and after what I said to him he would not do that. He called me a blooming young vaggerbond, and I says to him, "Vaggerbond yourself, ain't you wanting to make up false evidence agin a female? You are worse nor a vaggerbond," says I. "You are just the worst kind of a spy," says I, "and a liar at that." Then I had to make a bolt for it, and he arter me, and he run nigh fifty yards before he stopped; that is enough to show how mad he wor over it. First of all I thinks as I would go to the Garden, and take to odd jobs and sleeping under the waggons, as I used to do afore I took up with him. Then I says to myself, "There is that Captain Hampton; he is a nice sort of gent. I could get along first-rate with him if he would have me."'
 
'But those clothes you have got on, Jacob; I suppose Slippen gave you those?'
 
'Not he; Slippen ain't that sort; he got the clothes for me, and says he, "These 'ere clothes cost twenty-two bob. I intend to give you half-a-crown a week, and," says he, "I shall stop a bob a week for your clothes." I have been with him about half a year, so we are square as to the things.'
 
'But how did you live on eighteenpence a week?'
 
'I got a bob now and then from people who came to Slippen. When they knew as I was doing the watching for them they would tip me, so as to give me a h'interest in the case, as they said. I used to reckon on making two bob a week that way, so with Slippen's eighteenpence, I had sixpence a day for grub. I have got my old things wrapped up in the cupboard. I used to use them mostly when I went out watching. I can get them any time; I have got the key. I used to have to let myself in and out, so I have only got to watch till I see him go out, and then go in and get my things, and I can leave the key on the table when I come out.'
 
Captain Hampton looked at the boy for some time in silence; it really seemed a stroke of good luck that had thrown him in his way. There was no doubt of his shrewdness; he was honest so far as his ideas of honesty went. He wished to serve him, and would probably be faithful. He himself felt altogether at sea as to how to set about the quest for this man and the unknown woman who must be his associate. Even if the boy could be of no material assistance, he would have him to talk to, and there was no one else to whom he could say anything on the subject.
 
'Well, Jacob,............