"As yet I cannot be certain of them; but, so far as I can see at present, they include the search and examination of chambers and valet, a conversation with the landlady of the Red Star, a visit to Taxton-on-Thames, and an interview with Dr. Renshaw."
"Why with the latter gentleman?"
"Because Renshaw is too confidential with Mrs. Boazoph, because he was too conveniently on the spot at the time of the murder for my liking; and, finally, because Renshaw had a cut-and-dried theory of the motive of the crime prepared on the instant."
"You don't trust the man?"
"I think that his conduct is suspicious; but I do not accuse him of anything--as yet."
"He does not look a man to be feared," said Garth, disbelievingly; "he was very timid in giving his evidence at the inquest."
"That is one reason why I mistrust him. Dr. Renshaw is acting a part, but I am unable to say whether he is mixed up in this especial affair. I have my suspicions, but, as you know, I never like to speak unless certain."
Garth looked curiously at the detective.
"You hint at the guilt of Mrs. Boazoph," he said, doubtfully.
"Do I? Then I should hold my tongue. There is no doubt that the negro committed the crime in the way that I told you of. But I believe that he acted as the agent of a third party--not Mrs. Boazoph. I wish to find out that party to hang him or her as an accessory before the fact."