His anxiety to get the job at Averill’s was an interesting feature of the case. It must have been a poor job for a man who had been male nurse in the Ransome Institute. It was not only a hard and thankless job in itself, but it meant being buried in one of the bleakest and most barren solitudes of England. Moreover, such a job would lead to nothing, and as Averill was paying, it was unlikely that the salary was other than miserable. Of course after dismissal from the Institute Roper might have been glad of anything, but French did not feel satisfied that this really explained the matter. His thoughts took another line. The belief in Averill’s wealth was universal and Roper could scarcely have failed to hear of it when inquiring about the place. The feebleness of the old man and the isolation of the house were, of course, patent. Was it too much to conclude that the idea of robbery had been in Roper’s mind from the first? If so, a reason why he had ceased to blackmail Philpot might be suggested. The doctor was the one person in the neighbourhood who knew his real character. If anything untoward happened at Starvel, the doctor would immediately become suspicious. It was, therefore, politic to suggest a reformation of character to Philpot, and the best way in which this could be done was undoubtedly the way Roper had chosen. But he was not going to spoil the affair by haste. This was the one great effort of his life and he was out to make a job of it. No time nor trouble nor inconvenience was too great to devote to it. So he waited for over a year. How many a wife murderer, thought French, has aroused suspicion by marrying the other woman within the twelve months. Roper was not going to make the mistake of acting too soon. During this time of waiting the man had doubtless been perfecting his scheme. And then another factor had entered into it. He had come to hate his wife. Why not at one fell stroke achieve both wealth and freedom? The same machinery would accomplish both. In the nature of the case French saw that all this must necessarily be speculative, but when he came to consider the details of the crime he felt himself on firmer ground. The first move was to get Ruth Averill out of the way, and here the _modus operandi_ was clear. Roper had evidently either heard enough about Mrs. Palmer-Gore from Mr. Averill to give him his idea, or he had discovered her existence from old letters. He had forged the note to her from Averill, and intercepting its reply, had used its enclosure to induce Ruth to go to York. As he couldn’t prevent the girl from visiting her uncle, he had drugged the old man so that the fraud would remain hidden.