But Fleming Stone paid little heed to this gossip. He was studying the photographs of the dead lady as being of far more interest than pictures on the boudoir walls.

“Where’s that maid?” he said suddenly; “the one who brought the breakfast tray——”

“She’s in the sanatorium,” returned Hardy; “we told you that, Mr. Stone.”

“Yes, yes, I know. But where? Can I see her? Now, at once!”

“Yes, I suppose so. It’s right near here. A small private affair, only a few patients. They needn’t really have sent her, but she carried on so, Miss Stuart wouldn’t have her about any longer.”

“Come, let us go there.” As he spoke, Fleming Stone left the room, and without waiting for the hurrying Hardy, ran downstairs, and was in the hall, getting into his great coat when the other joined him.

So great was Hardy’s faith in his superior, and so anxious was he to watch his methods, that he donned his own overcoat without a word, and the two set forth.

It was only a short walk, and on the way, Stone looked about in every direction, asking innumerable questions about the neighboring houses and their occupants.

After passing several large and handsome estates, they came to a district of less elaborate homes, and after that to a section of decidedly poorer residences. At one of these, Stone stared hard, but not till they were well past it, did he inquire who lived there.

“Dunno,” replied Hardy; “it’s a sort of boarding-house, I think, for the lower classes.”