Tuppence obeyed passively. Her good sense told her that there was nothing else to do but accept the situation. If she shrieked for help there was very little chance of anyone hearing her, whereas there was probably quite a good chance of Mrs. Vandemeyer’s shooting her. In the meantime, every minute of delay gained was valuable.

Mrs. Vandemeyer laid down the revolver on the edge of the washstand within reach of her hand, and, still eyeing Tuppence like a lynx in case the girl should attempt to move, she took a little stoppered bottle from its place on the marble and poured some of its contents into a glass which she filled up with water.

“What’s that?” asked Tuppence sharply.

“Something to make you sleep soundly.”

Tuppence paled a little.

“Are you going to poison me?” she asked in a whisper.

“Perhaps,” said Mrs. Vandemeyer, smiling agreeably.

“Then I shan’t drink it,” said Tuppence firmly. “I’d much rather be shot. At any rate that would make a row, and some one might hear it. But I won’t be killed off quietly like a lamb.”

Mrs. Vandemeyer stamped her foot.

“Don’t be a little fool! Do you really think I want a hue and cry for murder out after me? If you’ve any sense at all, you’ll realize that poisoning you wouldn’t suit my book at all. It’s a sleeping draught, that’s all. You’ll wake up to-morrow morning none the worse. I simply don’t want the bother of tying you up and gagging you. That’s the alternative—and you won’t like it, I can tell you! I can be very rough if I choose. So drink this down like a good girl, and you’ll be none the worse for it.”