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The Dagger with Wings "Third and last," said the priest, looking at him gravely.

"Yes," said Boyne. "The other two are dead." There was a silence before he continued. "That is where the doubt comes in. There is no proof they were murdered, but they might possibly have been. The eldest, who took up his position as squire, was supposed to have committed suicide in his garden. The second, who went into trade as a manufacturer, was knocked onthe head by the machinery in his factory; he might very well have taken a false step and fallen. But if Strake did kill them, he is certainly very cunning in his way of getting to work and getting away. On the other hand, it's more than likely that the whole thing is a mania of conspiracy founded on a coincidence. Look here, what I want is this. I want somebody of sense, who isn't an official, to go up and have a talk with this Mr. Arnold Aylmer and form an impression of him. You know what a man with a delusion is like, and how a man looks when he is telling the truth. I want you to be the advance guard, before we take the matter up."

"It seems rather odd," said Father Brown, "that you haven't had to take it up before. If there is anything in this business, it seems to have been going on for a good time. Is there any particular