"You can make certain of that by seeing Busham."
Mrs. Moxton looked troubled. "I am afraid," she said faintly. "I am terribly afraid."
"I do not see why you should be."
"Mr. Busham called on the morning after the murder; he must have learnt then of my loss. Yet he has never repeated his visit, has never written a line. I can't conceive his reason for acting in this way, unless," here she hesitated, "he believes that I murdered Edgar."
"He would not be so foolish as to believe that without evidence, and even if he did, the inquest must have disabused his mind of the idea."
"For all that I am afraid to call. I have heard Edgar talk of Mr. Busham; he is a dangerous man, Dr. Ellis, and for all I know may be laying a trap for me."
"Tell me the truth and I will prevent your falling into this trap."
Mrs. Moxton hesitated, and then burst out defiantly: "What is it you wish to know?"
"Firstly, if you know the meaning of the blood signs on your husband's arm?"
"No! I do not."