"No."
"When did you discover that Lady Nest was an - was taking the stuff, sir?"
"After Seaton-Carew's murder, and your visit to my house. How much of what I say to you do you propose to make public property?"
"That will depend on circumstances, sir."
Poulton smiled faintly. "I understand you. I did not murder Mrs. Haddington, so I must hope that "circumstance" will not arise. Seaton-Carew's death came as an appalling shock to my wife. Under the stress of'- considerable emotion - she was induced to confide in me. I should add that her nerves have never been robust, and that I did not suspect what you have discovered until an old friend of mine, who is an eminent physician, met her in my house, and - confided to me his suspicion. When the source of her supply was murdered and it seemed probable that you would discover what that source was, I was able to persuade her to go into a Home."
"You knew it was Seaton-Carew?"
"Only on Tuesday night, after his death."
"Did Lady Nest also divulge to you that she had been blackmailed by Mrs. Haddington?"
"She did." Poulton looked steadily at Hemingway. "I visited Mrs. Haddington yesterday to inform her that I was in full possession of all the facts of that old scandal, and that I should have no hesitation, in certain eventualities, in placing the matter in the hands of the police. There was no conceivable reason why I should have murdered her, nor did I do so. I have no more to say than that."
"At what hour did you leave Charles Street, sir?"