Sabina, who had been standing, suddenly sat down and burst out laughing.

"Well, you are a deep one," she said, when her laughter was ended, and she observed that Mrs. Vane was regarding her rather angrily; "if you'll excuse me for saying so, ma'am, but you are the very deepest one I ever came across! And you don't look it one bit!"

"I suppose you mean both of these assertions for compliments," said Flossy. "If so you need not trouble to make them again. This is a business matter. Will you undertake it, or will you not?"

"When?"

"To-night."

"To-night! When he comes in to tea? Well, is it safe?"

"You mean the drug? Perfectly safe. He will never know that he has had it. It will keep him sound asleep for a couple of hours at least. During that time I do not think that thunder itself would wake him."

"You've tried it before, I'll warrant?" said Sabina half questioningly, half admiringly.

"Yes," said Flossy placidly, "I have tried it before." She took a little bottle of greenish glass from the small morocco bag which she carried in her hand, and held it up to the light. "There are two doses in it," she said. "Don't use it all at once. A drop or two more or less does not matter; you need not be afraid of making it a little too strong. It is colorless and tasteless. Can you manage it?"

Sabina considered.