The man who had opened the door was a short, stoutly built person of middle age. He took the girl's arm gently, and without questioning she accompanied him to the car ahead, the man in the raincoat following. No word was spoken, and Lydia was too bewildered to ask questions until the car was on its way. Then the younger man chuckled.

"Clever, Rennett!" he said. "I tell you, those people are super-humanly brilliant!"

"I'm not a great admirer of villainy," said the other gruffly, and the younger man, who was sitting opposite the girl, laughed.

"You must take a detached interest, my dear chap. Personally, I admire them. I admit they gave me a fright when I realised that Miss Beale had not called the cab, but that it had been carefully planted for her, but still I can admire them."

"What does it mean?" asked the puzzled girl. "I'm so confused--where are we going now? To the office?"

"I fear you will not get to the office to-night," said the young man calmly, "and it is impossible to explain to you just why you were abducted."

"Abducted?" said the girl incredulously. "Do you mean to say that man----"

"He was carrying you into the country," said the other calmly. "He would probably have travelled all night and have left you stranded in some un-get-at-able place. I don't think he meant any harm--they never take unnecessary risks, and all they wanted was to spirit you away for the night. How they came to know that we had chosen you baffles me," he said. "Can you advance any theory, Rennett?"

"Chosen me?" repeated the startled girl. "Really, I feel I'm entitled to some explanation, and if you don't mind, I would like you to take me back to my office. I have a job to keep," she added grimly.

"Six pounds ten a week, and a few guineas extra for your illustrations," said the man in the raincoat. "Believe me, Miss Beale, you'll never pay off your debts on that salary, not if you live to be a hundred."

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She could only gasp.

"You seem to know a great deal about my private affairs," she said, when she had recovered her breath.

"A great deal more than you can imagine."

She guessed he was smiling in the darkness, and his voice was so gentle and apologetic that she could not take offence.