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Rh the name of a suspected person until I have at least partial proof of guilt, enough to warrant an arrest. But you have a right to such confidence as I can give, and so, if you have a question to ask, and I think you have, let me answer it if I can."

"Oh, I thank you." She came a step nearer. "I ask myself one question, over and over; that there was no guilty secret in my poor boy's life and death, I know. Where, then, can be the motive?"

"The motive, ah! When we know that, we shall be at the beginning of the end of the matter. Sit down, Miss Grant, and I will put the case before you as I now see it."

She sank into the nearest seat without a word.

"As to the manner of the murder," he went on, "this is my conclusion. Some one, an enemy who hated or feared him, has informed himself of Mr. Charles Brierly's habits, and made himself familiar with the woods along the lake shore. Your friend, I learn, has practised target-shooting for some time. Have you ever thought that he might have had a reason for so doing?"

"Good heavens! No!"

"Well, that is only a suggestion. But this much is certain, the deed was premeditated, and carefully planned. I have satisfied myself that the assassin, approaching from the south, made almost the circuit