"I promised to do this to the best of my ability. We were close to the George by this time, and I could not help thinking of that bright summer's day upon which Henry Dunbar and his victim had driven into Winchester on the first stage of a journey which one of them was never to finish. The conviction of the banker's guilt had so grown upon me since that scene in St. Gundolph Lane, that I thought of the man now almost as if he had been fairly tried and deliberately found guilty. It surprised me when the detective talked of his guilt as open to question, and yet to be proved. In my mind Henry Dunbar stood self-condemned, by the evidence of his own conduct, as the murderer of his old servant Joseph Wilmot.
"The weather was bleak and windy, and there were very few wanderers in the hilly High Street of Winchester. We were received with very courteous welcome at the George, and were conducted to a comfortable sitting-room upon the first-floor, with windows looking out upon the street. Two bedrooms in the vicinity of the sitting-room were assigned to us. I ordered dinner for six o'clock, having ascertained that hour to be agreeable to Mr. Carter, who was slowly removing his wrappings, and looking deliberately at every separate article in the room; as if he fancied there might be some scrap of information to be picked up from a window-blind, or a coal-scuttle, or lurking mysteries hidden in a sideboard-drawer. I have no doubt the habit of observation was so strong upon this man that he observed the most insignificant things involuntarily.
"It was a very dull unpleasant day, and I was glad to draw my chair to the fire and make myself comfortable, while the waiter went to fetch a bottle of soda-water and sixpenn'orth of 'best French' for my companion, who was walking about the room with his hands in his pockets, and his grizzled eyebrows knotted together.
"The reward which Government had offered for the arrest of Joseph Wilmot's murderer was the legitimate price usually bidden for the head of an assassin. The Government had offered to pay one hundred pounds to any person or persons who should give such information as would lead to the apprehension of the guilty party or parties. I had promised Mr. Carter that I would give him another hundred pounds on my own account if he succeeded in solving the mystery of Joseph Wilmot's death. The reward at stake was therefore two hundred pounds; and this was a pretty high stake, Mr. Carter told me, as the detective business went. I had given him my written engagement to pay the hundred pounds upon the day of the murderer's arrest, and I was very well able to do so without fear of being compelled to ask help of my mother; for I had saved upwards of a thousand pounds during my twelve years' service in the house of Dunbar, Dunbar, and Balderby.
"I saw from Mr. Carter's countenance that he was thinking, and thinking very earnestly. He drank the soda-water and brandy; but he said nothing to the waiter who brought him that popular beverage. When the man was gone, he came and planted himself opposite to me upon the hearth-rug.
"'I'm going to talk to you very seriously, sir,' he said.
"I assured him that I was quite ready to listen to anything he might have to say.
"'When you employ a detective officer, sir,' he began, 'don't employ a man you can't put entire confidence in. If you can't trust him don't have anything to do with him; for if he isn't to be trusted with the dearest family secret that ever was kept sacred by an honest man, why he's a scoundrel, and you're much better off without his help. But when you've got a man that has been recommended to you by those who know him, trust him, and don't be afraid to trust him, don't confide in him by halves; don't tell him one part of your story, and keep the other half hidden from him; because, you see, working in the twilight isn't much more profitable than working in the dark. Now, why do I say this to you, Mr. Austin? You know as well as I do. I say it because I know you haven't trusted me.'
"'I have told you all that was absolutely necessary for you to know,' I said.
"'Not a bit of it, sir. It's absolutely necessary for me to know everything: that is, if you want me to succeed in the business I'm engaged upon. You're afraid to give me your confidence out and out, without reserve. Lor' bless your innocence, sir; in my profession a man learns the use of his eyes; and when once he's learnt how to use them, it ain't easy for him to keep them shut. I know as well as you do that you're hiding something from me: you're keeping something back, though you've half a mind to trust me. You took out a letter three times while we wore sitting opposite to each other in the railway carriage; and you read the letter; and every now and then, while you were reading it, you looked up at me with a hesitating you-would-and-you-wouldn't sort of look. You thought I was looking out of the window all the time; and so I was, being uncommonly interested in the corn-fields we were passing just then, so flat and stumpy and picturesque they looked; but, lor', Mr. Austin, if I couldn't look out of the window and watch you at the same time, I shouldn't be worth my salt to you or any one else. I saw plain enough that you had half a mind to show me that letter; and it wasn't very difficult to guess that the letter had some bearing upon the business that has brought us to Winchester.'