Martin Hewitt, Investigator

was in sight of it--which was almost all the time. As to the window, the sash-line had broken that very morning, and Mrs. Armitage had propped open the bottom half about eight or ten inches with a brush; and, when she returned, that brush, sash, and all were exactly as she had left them. Now I scarcely need tell you what an awkward job it must have been for anybody to get noiselessly in at that unsupported window; and how unlikely he would have been to replace it, with the brush, exactly as he found it."

"Just so. I suppose the brooch, was really gone? I mean, there was no chance of Mrs. Armitage having mislaid it?"

"Oh, none at all! There was a most careful search."

"Then, as to getting in at the window, would it have been easy?"

"Well, yes," Sir James replied; "yes, perhaps it would. It was a first-floor window, and it looks over the roof and skylight of the billiard-room. I built the billiard-room myself--built it out from a smoking-room just at this corner. It would b