“I didn’t find so much as a thread,” said Kitty, as they sat down on a great carved seat in the hall to compare notes.

“I didn’t either,” said Rob, “with one insignificant exception; in the drawing-room I found this, but it doesn’t mean anything.”

As he spoke he drew from his pocket a tiny globule of a silver color.

“What is it?” asked Kitty, taking it with her fingertips from the palm of his hand.

“It’s a cachou.”

“And what in the world is a cachou? What is it for?”

“Why, it’s a little confection filled with a sort of spice. Some men use them after smoking, to eradicate the odor of tobacco.”