"Does he talk?"

"Not as I've heard. I believe if anybody asks him a civil question for the sake of making a bit of conversation, he acts silly, and says it's no good anyone trying to get anything out of him. I've known a lot of drunks that only had to have four or five before they'd start behaving as though they'd got a whole lot of wonderful secrets which everybody was trying to get out of them."

"Oh, he says that, does he?"

"Not in so many words, he doesn't. No, he just sits and drinks, and if ever he gets talking it's the usual sort of rubbish. But he soon gets past that stage, does young Brown. Well, if he didn't Mr. Hawkins would put him outside. He gets very quiet and sits staring in front of him in a very ugly way. Very ugly indeed, so I've heard. I don't say he wouldn't like to go and murder someone when he's drunk, but I should be very surprised if ever he done it. Very surprised, I should be. Because how he manages to get himself home without being run over, let alone shooting anyone, fairly beats me. And when he's sober he's not the sort of chap who's got the guts - if you'll pardon the expression, Mr. Amberley — to do a murder. Leastways, not to my mind. However, I daresay you know your own business best, sir, and in any case it won't do any harm to have him watched."

"I'm rather hoping it'll prevent harm," said Mr. Amherley, and took his leave.

He went out to his car and drove off across the Market Square. But he was not destined to return immediately to Greythorne. From the pavement Shirley Brown hailed him. He drew up alongside her obligingly. She said in a voice quivering with indignation that she wanted to speak to him. He replied with some humour that that was a pleasant surprise.

She paid no heed to this remark. Wrath blazed in her dark eyes; she even stammered a little as she spoke. He had dared to set a plain-dothes man on to watch her brother! She told him it was no use denying it; he merely laughed. She accused him of double-dealing, for had not he asked her to trust him, while all the time he meant to spy on Mark? With a sudden change of front she poured scorn on the constable who was shadowing Mark; it was obvious to the meanest intelligence that the man was a policeman. The whole thing was an outrage, and she never wished to see Amberley again as long as she lived. With that she swung on her heel and strode off, furious because she knew that he was laughing at her.

Next day Mr. Amberley sustained a second visit from the chief constable, who was plainly restive. He had expected something to happen; he thought he had better look Amberley up. Amberley, who was oddly irritable, said tartly that the colonel might be thankful that nothing had happened; and when the colonel, looking exceedingly nervous, ventured to ask what he meant, he gripped his pipe between his teeth, thrust his hands in the pockets of his grey flannel trousers, and continued to wander round the room without vouchsafing any answer. Pressed more closely, he said that until he received the answer to a cable he had dispatched he could give the colonel no information.

The answer arrived that evening just before ten. The butler brought it into the drawing room where Amberley was sitting, listening to Sir Humphrey on the subject of preserving. Sir Humphrey, quite uninterested in local murders, was justly incensed by the presence of poachers in the district. He told Amberley what his keeper had said and what old Clitheroe-Williams thought ought to be done, and how he himself had heard a shot at five o'clock the other morning, and Amberley gave abstracted answers and did a complicated Patience. Sir Humphrey had just announced his intention of speaking to that fellow Fountain about his head-keeper, who was an incompetent ass if ever there was one and lazy to boot, when the cable was brought in.

Amberley swept the playing cards into a heap, and getting up without waiting to hear the end of Sir Humphrey's monologue, went off to decode it in private.