It was evident there were two possible lines of inquiry, either of which might give him his information.

The first was the definite identification of the body which had been found in the position of Roper’s bed. Was there any physical peculiarity about Roper which would enable a conclusion to be reached as to whether this body was or was not his? It was true that the remains had been examined by Dr. Emerson and unhesitatingly accepted as Roper’s, but the doctor had had no reason for doubt in the matter and might therefore have overlooked some small point which would have led to a contrary conclusion.

The second line of inquiry was more promising. If Roper had carried out such a fraud he must have provided a body to substitute for his own. Had he done so, and if he had, where had this body been obtained?

Here was an act which, French felt, could not have been done without leaving traces. Roper had proved himself a very skilful man, but the secret acquisition of a dead body in a country like England was an extraordinarily difficult undertaking, and of course the more difficult an action was to carry out, the greater were the chances of its discovery. Proof or disproof of his theory would be quickly forthcoming.

Hour after hour French lay pondering the matter, and when shortly before daylight he at last fell asleep, he had laid his plans for the prosecution of his new inquiry.

He began by calling on Dr. Emerson. The doctor was writing in his consulting room when French was shown in, and he rose to greet his visitor with old-fashioned courtesy.

“Sorry for troubling you again, doctor,” French began with his pleasant smile, “but I wanted to ask you a question. It won’t take five minutes.”

“My dear sir, there is no hurry. I’m quite at your disposal.”

“Very good of you, Dr. Emerson, I’m sure. It’s really a matter more of idle curiosity than a serious inquiry. I was thinking over that Starvel affair, and I wondered how you were able to identify the bodies. It was a phrase in the evidence that struck me. I gathered that you said that the bodies of each of the three occupants of the house were lying on the sites of their respective beds. I should like to ask if that was stated from definite identification of the remains, or if it was merely a reasonable and justifiable assumption?”

“If that is what you read, I am afraid I have not been correctly reported. I certainly never said that the body found at each bed was that of the owner of the bed. That they were so I have no doubt: from every point of view I think that is a reasonable and justifiable assumption, to use your own phrase. But actual identification was quite impossible. It is rather an unpleasant subject, but fire, especially such a furnace as must have raged at Starvel, destroys practically all physical characteristics.”