She told him of what was being done.

"Can you suggest anything else, Dr. Leeds?"

"Nothing. It seems to me that the key to the mystery is in the hands of this man, and that it is there it must be sought, though at present I can see no way in which the matter can be set about. When one enters into a struggle with a man like this, one must be armed at all points, prepared to meet craft with craft, and above all to have a well-marked-out plan of campaign. Now I will say good-morning. I suppose Miss Purcell and her niece will stay on with you, at any rate for a time?"

"For a long time, I hope," she said.

"May I ask if you have stated the view that you have given me to Miss Netta Purcell?"

"Yes, I have told her. She is disposed to treat it as an absurd fancy on my part, but if I can get anything to go upon which will convince her that there is even a faint possibility of my being right, she will go through fire and water to a.s.sist me."

"I can well believe that," the doctor said. "I am sure that she has a strong character, although so lively and full of fun. Of course, having been thrown with her for four months, I am able to form a very fair opinion of her disposition."

After Dr. Leeds had left, Hilda began to build castles for her friend.

"It would be a splendid thing for her," she said. "He is certainly not a man to speak in the way he did unless he thoroughly meant it. I should think that they were just suited to each other; though it would be really a pity that the scheme I had set my mind upon for getting her over here as head of an inst.i.tution for teaching deaf and dumb children on Professor Menzel's plan should come to nothing. Perhaps, though, he might be willing that she should act as the head of such an establishment, getting trained a.s.sistants from those she knows in Hanover and giving a few hours a day herself to the general supervision, if only for the sake of the good that such an inst.i.tution would do among, perhaps the most unfortunate of all beings. I am quite sure that, so far, she has no thought of such a thing. However, perhaps I am running on too fast, and that he only means what he said, that he admired her character. I suppose there is no reason that because a man admires a girl's character he should fall in love with her, and yet Netta is so bright and cheerful, and at the same time so kind and thoughtful, I can hardly imagine that any man, thrown with her as he has been, could help falling in love with her."

Netta was surprised when Hilda told her that Dr. Leeds had been inclined to view her theory seriously.

"Really, Hilda? Certainly he is not the sort of man to be carried away by your enthusiasm, so please consider all that I have said upon the subject as unspoken, and I will stand neutral until I hear further what he says."

"He did not say very much, I admit, Netta; but he said that he would take the matter seriously into consideration and let me know what he thinks in two or three days."

"I am afraid that he wants to let you down gently," Netta said. "Well, well, don't looked vexed! I will say no more about it until this solemn judgment is delivered."

Netta was in the room when Dr. Leeds called, two days later.

"Netta is in all my counsels, Dr. Leeds," Hilda said, "and she is, as a rule, a capital hand at keeping a secret, though she did let mine slip out to you."

There was no smile on the doctor's face, and both girls felt at once that the interview was to be a serious one.

"I am well aware that I can speak before Miss Purcell," he said, "although there are very few people before whom I would repeat what I am going to say. I have two questions to ask you, Miss Covington. What is the date of this last will of your uncle's?"

"It is dated the 16th of May."

"About a fortnight before the General's alarming seizure?"

Hilda bowed her head in a.s.sent. The next question took her quite by surprise.

"Do you know whether this man Simcoe was one of the party when the seizure took place?"

"He was, doctor. My uncle told me that he was going to dine with him, and Dr. Pearson mentioned to me that he was next to the General and caught him as he fell from his chair."

Dr. Leeds got up and walked up and down the room two or three minutes.

"I think that now things have come to the present pa.s.s you ought to know what was the opinion that I originally formed of General Mathieson's illness. Dr. Pearson and Sir Henry Havercourt both differed from me and treated my theory as a fanciful one, and without foundation; and of course I yielded to such superior authority, and henceforth kept my ideas to myself. Nevertheless, during the time the General was under my charge I failed altogether to find any theory or explanation for his strange attack and subsequent state, except that which I had first formed. It was a theory that a medical man is always most reluctant to declare unless he is in a position to prove it, or at least to give some very strong reason in its favor, for a mistake would not only cost him his reputation, but might involve him in litigation and ruin his career altogether. But I think that I ought to tell you what my opinion is, Miss Covington. You must not take it for more than it is worth, namely as a theory; but it may possibly set you on a new track and aid you in your endeavor to discover the missing child."

The surprise of the two girls increased as he continued, after a pause:

"Ever since the day when I was first requested to act as the General's resident medical man I have devoted a considerable time to the study of books in which, here and there, could be found accounts of the action of the herbs in use among the Obi women, fetich men, and so-called wizards on the West Coast of Africa, also in India, and among the savage tribes of the Malay Archipelago and the Pacific Islands. What drugs they use has never been discovered, although many efforts have been made to obtain a knowledge of them, both in India and on the West Coast; but doctors have found it necessary to abandon the attempt, several of them having fallen victims of the jealousy of these people because of the researches they were making. But at the least the effects of the administration of these drugs have been frequently described, and in some respects these correspond so closely to those noticeable in the General's case that I say now, as I said at first, I believe the General's illness was caused by the administration of some drug absolutely unknown to European science."

"You think that my uncle was poisoned?" Hilda exclaimed in a tone of horror, while Netta started to her feet with clenched hands and flushed face.

"I have not used the word 'poisoned,' Miss Covington, though in fact it comes to that. It may not have been administered with the intention of killing; it may have been intended only to bring on a fit, which, in due time, might have been attended by others; but the dose may have been stronger than its administrator intended."

"And you think, Dr. Leeds--you think that it was administered by----"

"No, Miss Covington; I accuse no one. I have no shadow of proof against anyone; but taking this illness, with the abduction of the child, it cannot be denied that one's suspicions must, in the first case, fall upon the man who has profited by the crime, if crime it was. On May 16 this will was drawn up, bequeathing the property to a certain person.

The circ.u.mstances of the will were curious, but from what I learned from you of the explanation given by the lawyers who drew it up, it seems fair and above-board enough. The General was certainly greatly under the influence of this man, who had rendered him the greatest service one man can render another, and that at the risk of his own life. Therefore I do not consider that this will, which was, so to speak, sprung upon you, is in itself an important link in the chain. But when we find that twelve or fourteen days afterwards the General was, when at table, seized with a terrible fit of an extraordinary and mysterious nature, and that the man who had an interest in his death was sitting next to him, the coincidence is at least a strange one. When, however, the General's heir is abducted, when the General is at the point of death, the matter for the first time a.s.sumes a position of the most extreme gravity.

"At first, like you, I thought that Walter had either been stolen by some woman for the sake of his clothes, or that he had been carried off by someone aware that he was the General's heir, with a view to obtaining a large sum of money as his ransom. Such things have been done before, and will, no doubt, be done again. The first hypothesis appears to have failed altogether; no woman who had robbed a child of his clothes would desire to detain him for an hour longer than was necessary. The inquiries of the police have failed altogether; the people you have employed have ascertained that neither at the workhouses of London nor in the adjacent counties has any child at all answering to Walter's description been left by a tramp or brought in by the police or by someone who had found him wandering about. It cannot be said that the second hypothesis is also proved to be a mistaken one; the men who took him away would be obliged to exercise the greatest caution when opening negotiations for his release, and it might be a month or more before you heard from them.

"Therefore, it would be unfair to this man Simcoe to a.s.sume that he is the author of the plot until so long a period has pa.s.sed that it is morally certain that the boy was not stolen for the purpose of blackmail. However, we have the following suspicious circ.u.mstances: first, that, as I believe, the General was drugged by some poison of whose nature we are ignorant beyond that we read of very similar cases occurring among natives races in Africa and elsewhere. Then we have the point that no one would have had any interest in the General's death, with the exception of the man he had named as his heir in the event of the child's death. We know by the man's statement that he was for many years living among tribes where poisons of this kind are used by the wizards and fetich men to support their authority and to remove persons against whom they have a grudge. Lastly, we have the crowning fact of the abduction of the child, who stood between this man and the estates.

All this is at best mere circ.u.mstantial evidence. We do not know for certain what caused the General's fit, we have no proof that Simcoe had any hand in the abduction, and whatever our opinion may be, it is absolutely necessary that we do not breathe a hint to anyone."

Hilda did not speak; the shock and the horror of the matter were too much for her. She sat with open lips and blanched face, looking at Dr.

Leeds. Netta, however, leaped to her feet again.

"It must be so, Dr. Leeds. It does not seem to me that there can be a shadow of doubt in the matter, and anything that I can do to bring the truth to light I will do, however long a time it takes me."

"Thank you, Netta," Hilda said, holding out her hand to her friend; "as for me, I will devote my life to clearing up this mystery."

"I am afraid, Miss Covington, that my engagements henceforth will prevent my joining actively in your search, but my advice will always be at your service, and it may be that I shall be able to point out methods that have not occurred to you."

"But, oh, Dr. Leeds!" Hilda exclaimed suddenly; "if this villain poisoned my uncle, surely he will not hesitate to put Walter out of his path."

"I have been thinking of that," Dr. Leeds exclaimed, "but I have come to the conclusion that it is very unlikely that he will do so. In the first place, he must have had accomplices. The man who spoke to the nurse and the cabman who drove the child away must both have been employed by him, and I have no doubt whatever that the child has been placed with some persons who are probably altogether ignorant of his ident.i.ty. Walter was a lovable child, and as soon as he got over his first grief he would no doubt become attached to the people he was with, and although these might be willing to take a child who, they were told, had lost its parents, and was homeless and friendless, without inquiring too closely into the circ.u.mstances, it is unlikely in the extreme that they would connive at any acts of violence. It is by no means easy to murder and then to dispose of the body of a child of seven, and I should doubt whether this man would attempt such a thing. He would be perfectly content that the boy would be out of his way, that all traces of him should be lost, and that it would be beyond the range of probability that he could ever be identified, and, lastly, even the most hardened villains do not like putting their necks in a noose. Moreover, if in the last extremity his confederates, believing that he had made away with the child, tried to blackmail him, or some unforeseen circ.u.mstance brought home to him the guilt of this abduction, he would be in a position to produce the child, and even to make good terms for himself for doing so. You yourself, whatever your feelings might be as to the man whom you believe to be the murderer of your uncle, would still be willing to pay a considerable sum and allow him to leave the country, on condition of his restoring Walter. Therefore I think that you may make your mind easy on that score, and believe that whatever has happened to him, or wherever he may be, there is no risk of actual harm befalling him."

"Thank you very much, doctor. That is indeed a relief. And now have you thought of any plan upon which we had best set to work?"

"Not at present, beyond the fact that I see that the power you both possess of reading what men say, when, as they believe, out of earshot, ought to be of material advantage to you. As Miss Purcell has promised to a.s.sociate herself with you in the search, I should say that she would be of more use in this direction than you would. You have told me that he must be perfectly aware of your dislike for him, and would certainly be most careful, were you in his presence, although he might not dream of this power that you possess. But he has never seen your friend, and would not be on his guard with her. I have at present not thought over any plan by which she could watch him--that must be for after consideration--but it seems to me that this offers some chance of obtaining a clew."

"I am ready to do anything, Dr. Leeds," Netta said firmly. "You only have to find out a way, and I will follow out your instructions to the letter. First we must find out whether Hilda's theory about this man, which I scoffed at when she first spoke of it to me, is correct."

"You mean the theory that this man is not John Simcoe at all, but someone who, knowing the facts of the rescue from the tiger, and being also well acquainted with people and things in Benares, has personated him? I will not discuss that now. I have an appointment to meet a colleague for consultation in a difficult case, and have already run the time very close. You shall see me again shortly, when I have had time to think the whole matter over quietly."

CHAPTER XIII.

NETTA VISITS STOWMARKET.

"Well, Netta," Hilda said, after Dr. Leeds had left them, "I suppose you will not in future laugh at my instincts. I only wish that they had been stronger. I wish I had told my dear uncle that I disliked the man so thoroughly that I was sure there was something wrong with him, and implored him not to become very intimate with him. If I had told him how strongly I felt on the subject, although, of course, he could have left or given him any sum that he chose, I do think it would have had some influence with him. No doubt he would have laughed at what he would have called my suspicious nature, but I think he would not have become so friendly with the man; but, of course, I never thought of this. Oh, Netta! my heart seems broken at the thought that my dear uncle, the kindest of men, should have been murdered by a man towards whom his thoughts were so kindly that he appointed him his heir in the event of Walter's death. If he had left him double the sum he did, and had directed that in case of Walter's death the property should go to hospitals, the child might now have been safe in the house. It is heartbreaking to think of."

"Well, dear," Netta said, "we have our work before us. I say 'we'

because, although he was no relation to me, I loved him from the first, when he came over with the news of your father's death. Had I been his niece as well as you, he could not have treated me more kindly than he did when I was staying with you last year, and during the last four months that I have been with you. One could see, even in the state he was in, how kind his nature was, and his very helplessness added to one's affection for him. I quite meant what I said, for until this matter is cleared up, and until this crime, if crime it really is, is brought to light, I will stay here, and be your helper, however the long the time may be. There are two of us, and I do not think that either of us are fools, and we ought to be a match for one man. There is one thing we have, that is a man on whom we can rely. I do not mean Dr. Leeds; I regard him as our director. I mean Tom Roberts; he would have given his life, I am sure, for his master, and I feel confident that he will carry out any instructions we may give him to the letter."