yes.â
âHad they ever been here before?â
âOh yes; often.â
âWhat were their names?â
âMr Blake and Mr Lewis.â
âCan you describe them?â
âMr Blake he was very big and heavy, and Mr Lewis he was tall, too, but thin, and he looked older than Mr Blake.â
âNow, Anton, I want to see every room in the house. We must see that there is a key to every room and we must put a label on each key.â
âI have no labels, sir.â
âNo, but this officer has them. He will go with you round the rooms, lock them up, label the key and bring it down to this room. As you are all anxious about your wages, I advise you to apply to the Home Office tomorrow morning and there you will find that I have reported your case, too. They will tell you what to do.â
When all the rooms were locked and the keys stowed in Sergeant Walkerâs bag, Vincent gave Anton his final instructions.
âYou quite understand, you must admit no one before I come here tomorrow morning. They can wait if they please until I come, but they must not move beyond the hall. If you have any trouble with one of them, ring up the number I have given you and ask for meâChief Inspector Vincent.â
Chapter Four
V INCENT and Walker arrived at the house in Hampstead at nine oâclock the next morning. Anton admitted them. He had the appearance of a man who had slept ill.
âYou look at if youâd spent a disturbed night,â said Vincent.
âSir, I have no sleep at all. These journalists they are terrible. They keep me up answering the telephone till after two this morning and then because I will tell them no more than your communiqué, they come round and ring the bell. When I tell them to go to Scotland Yard they become angry.â
âIn your case I should not answer the bell or the telephone.â
âThen, sir, they start knocking and keep on knocking. No one can sleep when that knocker is going rat-tat-tatâ¦â
Walker produced his bag of keys and the officers began their search in the library. Not a single letter or paper of any kind was found in the desk or in the drawers. Vincent rang the bell and Anton appeared.
âGo and bring me the man whose duty it is to clean this room, and stay here with us to act as interpreter.â
âYes sir, but that man speaks English very well.â
âBring him in then.â
Anton returned with an upstanding young man with an open face. He was a Serbian and a fluent linguist.
âYou clean this room every morning?â
âYes sir.â
âBefore your master left the house on Saturday did you find burnt papers in the grate?â
âYes sir, for many days last week the grate was full of burnt paper.â
âJust letters or bigger documents?â
âBoth, sir, but mostly letters.â
âDid you notice anything else remarkable in the room when you cleaned it on Saturday morning?â
âOnly that I think my master had been studying late on Friday night. There were books everywhereâon the table, on the chairs and even on the floor. Some were open, some closed.â
âAnd you put them all back tidily in their shelves? Can you remember which books they were?â
âSome of them, sir. I will show you some that I remember.â
He brought down from the shelf three or four books which Vincent examined with curiosity. They were all in quarto size, but they varied greatly in their subjectsâhistory, biography, travel and science. In one respect they were alike, there was a note in figures on the flyleafâa pencilled note such as (to quote the first three) 797, 1325, 410.
Having dismissed the manservant, Vincent turned to Walker. âWhat do you make of these figures? They must mean something.â
âA code, do you think?â
Vincent shook his head. âI remember hearing in France that when a certain statesman died and his effects