THE MAN WHO KNEW
"I am as sure of it as I am that I am standing here," said the constable, not without a certain pride in the consistency of his view. "Did n't I go into the room? Was n't he there with the deceased? Was n't his revolver found? Had n't there been some jiggery-pokery with his books in London?"
Saul Arthur Mann smiled.
"There are some of us who think differently, Constable," he said, shaking hands with the implacable officer of the law.
He brought back to London a few new facts to be added to his record of Sergeant Crawley, alias Smith, and on these he went painstakingly to work.
As has been already explained, Saul Arthur Mann had a particularly useful relationship with Scotland Yard, and fortunately, about that time, he was on the most excellent terms with official police headquarters, for he had been able to assist them in running to earth one of the most powerful blackmailing gangs that had ever operated in Europe. His files had been
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