"I think that may be one of my brothers now. Suppose you go down and speak to him. He would know whether any one came to the house during the night. You may tell him that you have seen me, if you wish, and that I have no objection to your endeavoring to discover the truth." Mr. Barnes bade Mrs. Quadrant adieu and went down to the parlor floor. Not meeting any one, he touched a bell, and when the servant responded, asked for either of the gentlemen of the house who [Pg 25] might have come in. He was informed that Mr. Mark Quadrant was in the library, and was invited to see him there. [Pg 25] Mr. Mark Quadrant was of medium height, body finely proportioned, erect figure, a well-poised head, keen, bright eyes, a decided blond, and wore a Vandyke beard, close trimmed. He looked at Mr. Barnes in such a manner that the detective knew that whatever he might learn from this man would be nothing that he would prefer to conceal, unless accidentally surprised from him. It was necessary therefore to approach the subject with considerable circumspection. "I have called," said Mr. Barnes, "in relation to the mysterious circumstances surrounding the death of your brother." "Are you connected with the police force?" asked Mr. Quadrant. "No. I am a private detective." "Then you will pardon my saying that you are an intruder—an unwelcome intruder." "I think not," said Mr. Barnes, showing no irritation at his reception. "I have the permission of Mrs. Quadrant to investigate this affair." "Oh! You have seen her, have you?" "I have just had an interview with her." "Then your intrusion is more than unwelcome; it is an impertinence." "Why, pray?" "You should have seen myself or my brother, before disturbing a woman in the midst of her grief." [Pg 26] "I asked for you or your brother, but you were both away. It was only then that I asked to see Mrs. Quadrant."