The detective went to the point at once. “Of course, you know of Rupert Morrice, the big financier, most probably you are personally acquainted with him?”

“Known him for years, he was rather a pal of my father’s, used to give him a good tip now and then for his investments,” was the answer. “Can’t say I’m one of the intimates of the house, but always get a card for their big things, have been asked twice, I think, to fill up a dinner-party. What’s up?”

But without answering his question, Lane asked one himself. “We all know the man’s story, that is public property. But what about Mrs. Morrice; do you know anything about her antecedents, her family, her history, before she met her husband?”

Sellars shook his head. “I’ve never heard, I don’t think anybody has. A very charming woman, well-bred and all that, does the honours perfectly, but never seems to talk about herself as most of her sex do. The only thing I can remember is that some few years ago a nephew was introduced, a young chap named Archie Brookes, who was also a nephew of Sir George Clayton-Brookes who is as well-known in London as the Monument. Her sister married his younger brother, we were told.”

“You don’t know her maiden name?”

“No, but that of course can easily be got at Somerset House,” said the bright young man who had proved such an able colleague.

“Of course, I know that, but we need not go there. I have got the name, a rather uncommon one. She was a Miss Lettice Larchester, and I believe she hails from somewhere in Sussex.”

“And you want me to find out all about her before she became Mrs. Morrice, eh? He met her and married her abroad, I suppose you know that. He was awfully gone on Mrs. Croxton, the mother of that young chap whom he practically adopted and who acts as his secretary. It is said he remained a bachelor for years because of her.”

Reggie Sellars’ knowledge of the annals of the people who moved in certain circles was of the most exhaustive nature. And he had a memory like a vice; he never forgot a fact or a date, and never confused one history with another. He was certainly a most deceptive person. To look at him you would never imagine he would take the slightest trouble to acquire any knowledge that was not strictly necessary for his own immediate purposes.

“Yes, I want you to find out all you can about her; of course you will make your inquiries very discreetly. But, there, I need not warn you of that. You are always discreet.”