THE MAN WHO KNEW
had assisted the police times without number, and had been so fascinated by the success of this branch of his investigations that he had started a new criminal record, which had been of the greatest help to the police and had piqued Scotland Yard to emulation.
John Minute, descending from his cab at the door, looked up at the imposing facia with a frown. Entering the broad vestibule, he handed his card to the waiting attendant and took a seat in a well-furnished waiting room. Five minutes later he was ushered into the presence of "The Man Who Knew." Mr. Mann, a comical little figure at a very large writing table, jumped up and went halfway across the big room to meet his visitor. He beamed through his big spectacles as he waved John Minute to a deep armchair.
"The chief commissioner sent you, didn't he?" he said, pointing an accusing finger at the visitor. "I know he did, because he called me up this morning and asked me about three people who, I happen to know, have been
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