So far as Rodney was able to judge the little man was clad just as he had been on Sunday evening--in the same shabby tweed suit, the old unbrushed boots, with the same suggestion about him that he might easily have been improved by a more intimate acquaintance with soap and water. He had his hat in one hand, and with the other he rubbed his scrubby chin. No one could have seemed more at his ease. Without offering any sort of greeting he immediately proceeded to address the inspector, while the maid was still closing the door, in that thin, unmusical, penetrating voice which Rodney had so much disliked. "So you are there, Harlow, are you? I wondered if you'd have sense enough to come." He rounded off his sentence with the snigger which had so jarred on the young man's sensitive nerves, and which affected Gladys so unpleasantly that, with what seemed to be a start of repulsion, she moved closer to her lover's side. The stranger noted the movement, and commented on it--again with the uncomfortable snigger. "That's right; get as close as you can; he'll keep you safe; anyone will be safe who gets close enough to him. You're Miss Patterson; I could tell you anywhere by your likeness to your father. You're not the kind of girl I care about, any more than he was the kind of man. Who's the youngster? Now, there is someone worth looking at; why, he's as handsome as paint, and of quite unusual force of character for so young a man. Miss Patterson, the girl who gets him for a lover will have a lover of a kind of which she has no notion. He's a most remarkable young man." With a view, perhaps, of checking the stranger's volubility, the inspector administered what was possibly meant for a rebuke. "If you would confine yourself to the business which has brought you here, sir, it would be as well. Are you Mr. Parker?" "I am; Philip Walter Augustus Parker--a lot of name for a man of my size." "You sent me a letter last night from Beckenham?" "I did." "Stating that Mr. Graham Patterson did not commit suicide." "Exactly." "But was murdered?" "He was." "You went on to say that if I were here this afternoon you would point out to me the murderer." "I will." "Point him out." "I am." "I thought so." "I knew you did. I saw on your intelligent visage that you knew what was coming. You have some experience of cranks who accuse themselves of crimes of which they are innocent; you take it for granted that I am one of them, which shows what a dunce you are. I am a lunatic. That's right, Harlow, smile again. I knew that would tickle you. A policeman's sense of humour is his own." "It is necessary, Mr. Parker, that I should warn you that anything you say will be taken down and used against you."