When they got back, Hilda wrote a line to Dr. Leeds:
"Dear Doctor: I do think that we have discovered beyond doubt that the man is an impostor, and that whoever he may be, he is not John Simcoe. When you can spare time, please come round. It is too long to explain."
At nine o'clock that evening Dr. Leeds arrived, and heard of the steps that they had taken.
"Really, young ladies," he said, "I must retire at once from my post of director of searches. It was an excellent thought to ascertain the exact wording of the advertisement, and the fact that the word Stowmarket did not appear in it, and that it was inserted in other county papers, was very significant as to the advertiser's ignorance of John Simcoe's birthplace. But the quickness with which you saw how this could be proved up to the hilt shows that you are born detectives, and I shall be happy to sit at your feet in future."
"Then you think that it is quite conclusive?"
"Perfectly so. The real John Simcoe would, of course, have put the advertisement into the county paper published nearest to Stowmarket, and he would naturally have used the word Stowmarket. That omission might, however, have been accidental; but the appearance of the advertisement in the London papers, and as you have seen, in provincial papers all over England, appears to me ample evidence that he did not know from what county Simcoe came, and was ready to spend a pretty heavy amount to discover it. Now, I think that you should at once communicate with Mr. Pettigrew, and inform him of your suspicion and the discovery that you have made. It is for him to decide whether any steps should be taken in the matter, and, if so, what steps. As one of the trustees he is responsible for the proper division of the estates of General Mathieson, and the matter is of considerable importance to him.
"I think now, too, that our other suspicions should also be laid before him. Of course, these are greatly strengthened by his discovery. John Simcoe, who saved your uncle's life at the risk of his own, was scarcely the sort of man who would be guilty of murder and abduction; but an unknown adventurer, who had passed himself off as being Simcoe, with the object of obtaining a large legacy from the General, may fairly be assumed capable of taking any steps that would enable him to obtain it. If you'd like to write to Mr. Pettigrew and make an appointment to meet him at his office at three o'clock to-morrow afternoon, I will be here half an hour before and accompany you."
The lawyer was somewhat surprised when Dr. Leeds entered the office with the two ladies, but that astonishment became stupefaction when they told their story.
"In the whole of my professional career I have never heard a more astonishing story. I own that the abduction of the child at that critical moment did arouse suspicions in my mind that this Mr. Simcoe, the only person that could be benefited by his disappearance, might be at the bottom of it, and I was quite prepared to resist until the last any demand that might be made on his part for Walter to be declared to be dead, and the property handed over to him. But that the man could have had any connection whatever with the illness of the General, or that he was an impostor, never entered my mind. With regard to the first, it is still a matter of suspicion only, and we have not a shadow of proof to go upon. You say yourself, Dr. Leeds, that Dr. Pearson, the General's own medical attendant, and the other eminent physicians called in, refused absolutely to accept your suggestion, because, exceptional as the seizure and its effects were, there was nothing that absolutely pointed to poison. Unless we can obtain some distinct evidence on that point, the matter must not be touched upon; for even you would hardly be prepared to swear in court that the General was a victim to poison?"
"No. I could not take my oath to it, but I certainly could declare that the symptoms, to my mind, could be attributed to poison only."