“But I am sure, as I say, that he enjoyed it as a fantasy as well as a conspiracy. He set about the task of telling the true story the wrong way round: of treating the dead man as living and the live man as dead. He had already got into Aylmer’s dressing-gown; he proceeded to get into Aylmer’s body and soul. He looked at the corpse as if it were his own corpse lying cold in the snow. Then he spreadeagled it in that strange fashion to suggest the sweeping descent of a bird of prey, and decked it out not only in his own dark and flying garments but in a whole dark fairytale about the black bird that could only fall by the silver bullet. I do not know whether it was the silver glittering on the sideboard or the snow shining beyond the door that suggested to his intensely artistic temperament the theme of white magic and the white metal used against magicians. But whatever its origin, he made it his own like a poet; and did it very promptly, like a practical man. He completed the exchange and reversal of parts by flinging the corpse out on to the snow as the corpse of Strake. He did his best to work up a creepy conception of Strake as something hovering in the air everywhere, a harpy with wings of speed and claws of death; to explain the absence of footprints and other things. For one piece of artistic impudence I hugely admire him. He actually turned one of the contradictions in his case into an argument for it; and said that the man’s cloak being too long for him proved that he never walked on the ground like an ordinary mortal. But he looked at me very hard while he said that; and something told me that he was at that moment trying a very big bluff.”
Dr. Boyne looked thoughtful. “Had you discovered the truth by then?” he asked. “There is something very queer and close to the nerves, I think, about notions affecting identity. I don’t know whether it would be more weird to get a guess like that swiftly or slowly. I wonder when you suspected and when you were sure.”
“I think I really suspected when I telephoned to you,” replied his friend. “And it was nothing more than the red light from the closed door brightening and darkening on the carpet. It looked like a splash of blood that grew vivid as it cried for vengeance. Why should it change like that? I knew the sun had not come out; it could only be because the second door behind it had been opened and shut on the garden. But if he had gone out and seen his enemy then, he would have raised the alarm then; and it was some time afterwards that the fracas occurred. I began to feel he had gone out to do something … to prepare something … but as to when I was certain, that is a different matter. I knew that right at the end he was trying to hypnotize me, to master me by the black art of eyes like talismans and a voice like an incantation. That’s what he used to do with old Aylmer, no doubt. But it wasn’t only the way he said it, it was what he said. It was the religion and philosophy of it.”
“I’m afraid I’m a practical man,” said the doctor with gruff humour, “and I don’t bother much about religion and philosophy.”
“You’ll never be a practical man till you do,” said Father Brown. “Look here, doctor; you know me pretty well; I think you know I’m not a bigot. You know I know there are all sorts in all religions; good men in bad ones and bad men in good ones. But there’s just one little fact I’ve learned simply as a practical man, an entirely practical point, that I’ve picked up by experience, like the tricks of an animal or the trademark of a good wine. I’ve scarcely ever met a criminal who philosophized at all, who didn’t philosophize along those lines of orientalism and recurrence and reincarnation, and the wheel of destiny and the serpent biting its own tail. I have found merely in practice that there is a curse on the servants of that serpent; on their belly shall they go and the dust shall they eat; and there was never a blackguard or a profligate born who could not talk that sort of spirituality. It may not be like that in its real religious origins; but here in our working world it is the religion of rascals; and I knew it was a rascal who was speaking.”
“Why,” said Boyne, “I should have thought that a rascal could pretty well profess any religion he chose.”
“Yes,” assented the other; “he could profess any religion; that is he could pretend to any religion, if it was all a pretence. If it was mere mechanical hypocrisy and nothing else, no doubt it could be done by a mere mechanical hypocrite. Any sort of mask can be put on any sort of face. Anybody can learn certain phrases or state verbally that he holds certain views. I can go out into the street and state that I am a Wesleyan Methodist or a Sandemanian, though I fear in no very convincing accent. But we are talking about an artist; and for
