The Incredulity of Father Brown
in a ring round that garden wall, so that it 'ud be death to cross or climb it. Of course there couldn't be a shot, for this is the only way in; and the only window he sits at is away up on the top of a tower as smooth as a greasy pole. But, anyhow, we're all armed here, of course; and if Doom did get into that room he'd be dead before he got out."
Father Brown was blinking at the carpet in a brown study. Then he said suddenly, with something like a jerk:
"I hope you won't mind my mentioning it; but a kind of a notion came into my head just this minute. It's about you."
"Indeed," remarked Wilton, "and what about me?"
"I think you are a man of one idea," said Father Brown, "and you will forgive me for saying that it seems to be even more the idea of catching Daniel Doom than of defending Brander Merton."
Wilton started a little and continued to stare at his companion; then very slowly his grim mouth took on a rather curious smile.
"How did you—what makes you think that?" he asked.
"You said that if you heard a shot you could instantly electrocute the escaping enemy," remarked the priest. "I suppose it occurred to you that the shot might be fatal to your employer before the shock was fatal to his foe. I don't mean that
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