The more Burnley thought over this, the more likely it seemed. This would explain M. Thomas’s statement that only one cask had been sent out. It would make clear how the cask containing the body had been obtained. It would account for the astonishing coincidence that three casks of this unusual kind had made three such journeys almost at the same time.
Yes, it seemed probable. But if so, at some point in that triple journey the cask must have been opened, the statue removed, and the body substituted. The evidence was overwhelming that the cask had contained a statue when it left the Boulevard des Capucines yard, and that it had not been tampered with till it reached the van of the 7.47 p.m. from the Gare St. Lazare to Havre. Further, it had contained the body on arrival at St. Katherine’s Docks, and here again there was evidence that it could not have been opened in the hold of the _Bullfinch_. Therefore, at some point along the route, Gare St. Lazare, Havre, Southampton, Waterloo, Charing Cross, Dover, Calais, Gare du Nord, rue Cardinet goods station, Rouen, the change must have been made. Burnley made a mental note that every part of that journey must be the subject of the closest inquiry.
He went a step further. At the end of each of the three journeys it was met by a middle-sized, black-bearded, French-looking man. In the case of the third journey that man was Felix. In the two earlier, his identity was not definitely known, but he was like Felix. Suppose it was Felix in each case, would not this also tend to prove there was only one cask, and that Felix was sending it backwards and forwards with some design of his own? The Inspector felt sure that he was right so far.
But if Felix had acted in this way, it followed that either he was the murderer and wished to get the body to his house to dispose of it there, or else he was an innocent man upon whom the real criminal wished to plant the corpse. This latter idea had been growing in the Inspector’s mind for some time. It seemed to hinge very much on the question, Did Felix know what was in the cask when he met it at St. Katherine’s Docks? Burnley recalled the scene at Scotland Yard when it was opened. Either Felix was an incomparable actor, or else he did not know. Burnley doubted even whether any acting could have been so realistic. He remembered also that Felix’s illness from the shock was genuine. No, he rather believed Felix knew nothing of the corpse and, if so, he must be innocent. The point was one Burnley felt he could not settle alone. They must have medical evidence.