“Sir,” said Alice Armstrong in a low tone to the priest, “can I speak to you alone for a moment?”

This request forced the communicative cleric out of the gangway, and before he could speak in the next room, the girl was talking with strange incisiveness.

“You are a clever man,” she said, “and you are trying to save Patrick, I know. But it’s no use. The core of all this is black, and the more things you find out the more there will be against the miserable man I love.”

“Why?” asked Brown, looking at her steadily.

“Because,” she answered equally steadily, “I saw him commit the crime myself.”

“Ah!” said the unmoved Brown, “and what did he do?”

“I was in this room next to them,” she explained; “both doors were closed, but I suddenly heard a voice, such as I had never heard on earth, roaring ‘Hell, hell, hell,’ again and again, and then the two doors shook with the first explosion of the revolver. Thrice again the thing banged before I got the two doors open and found the room full of smoke; but the pistol was smoking in my poor, mad Patrick’s hand; and I saw him fire the last murderous volley with my own eyes. Then he leapt on my father, who was clinging in terror to the window-sill, and, grappling, tried to strangle him with the rope, which he threw over his head, but which slipped over his struggling shoulders to his feet. Then it tightened round one leg and Patrick dragged him along like a maniac. I snatched a knife from the mat, and, rushing between them, managed to cut the rope before I fainted.”

“I see,” said Father Brown, with the same wooden civility. “Thank you.”

As the girl collapsed under her memories, the priest passed stiffly into the next room, where he found Gilder and Merton alone with Patrick Royce, who sat in a chair, handcuffed. There he said to the Inspector submissively:

“Might I say a word to the prisoner in your presence; and might he take off those funny cuffs for a minute?”