For other reasons than the sound being deadened, I thought to myself!

"I must ask Anne," said Lawrence. "She may remember. By the way, there seems to me to be one curious fact that needs explanation. Mrs. Lestrange, the Mystery Lady of St. Mary Mead, paid a visit to old Protheroe after dinner on Wednesday night. And nobody seems to have any idea what it was all about. Old Protheroe said nothing to either his wife or Lettice."

"Perhaps the vicar knows," said Miss Marple.

Now how did the woman know that I had been to visit Mrs. Lestrange that afternoon? The way she always knows things is uncanny.

I shook my head and said I could throw no light upon the matter.

"What does Inspector Slack think?" asked Miss Marple.

"He's done his best to bully the butler - but apparently the butler wasn't curious enough to listen at the door. So there it is - no one knows."

"I expect someone overheard something, though, don't you?" said Miss Marple. "I mean, somebody always does. I think that is where Mr. Redding might find out something."

"But Mrs. Protheroe knows nothing."

"I didn't mean Anne Protheroe," said Miss Marple. "I meant the women servants. They do so hate telling anything to the police. But a nice-looking young man - you'll excuse me, Mr. Redding - and one who has been unjustly suspected - oh! I'm sure they'd tell him at once."

"I'll go and have a try this evening," said Lawrence with vigour. "Thanks for the hint, Miss Marple. I'll go after - well, after a little job the vicar and I are going to do."

It occurred to me that we had better be getting on with it.

I said good-bye to Miss Marple and we entered the woods once more.

First we went up the path till we came to a new spot where it certainly looked as though someone had left the path on the right-hand side. Lawrence explained that he had already followed this particular trail and found it led nowhere, but he added that we might as well try again. He might have been wrong.

It was, however, as he had said. After about ten or twelve yards any sign of broken and trampled leaves petered out. It was from this spot that Lawrence had broken back towards the path to meet me earlier in the afternoon.

We emerged on the path again and walked a little farther along it. Again we came to a place where the bushes seemed disturbed. The signs were very slight but, I thought, unmistakable. This time the trail was more promising. By a devious course, it wound steadily nearer to the Vicarage. Presently we arrived at where the bushes grew thickly up to the wall. The wall is a high one and ornamented with fragments of broken bottles on the top. If any one had placed a ladder against it, we ought to find traces of their passage.

We were working our way slowly along the wall when a sound came to our ears of a breaking twig. I pressed forward, forcing my way through a thick tangle of shrubs - and came face to face with Inspector Slack.

"So it's you," he said. "And Mr. Redding. Now what do you think you two gentlemen are doing?"

Slightly crestfallen, we explained.

"Quite so," said the inspector. "Not being the fools we're usually thought to be, I had the same idea myself. I've been here over an hour. Would you like to know something?"

"Yes," I said meekly.

"Whoever murdered Colonel Protheroe didn't come this way to do it! There's not a sign either on this side of the wall, nor the other. Whoever murdered Colonel Protheroe came through the front door. There's no other way he could have come."

"Impossible," I cried.

"Why impossible? Your door stands open. Any one's only got to walk in. They can't be seen from the kitchen. They know you're safely out of the way, they know Mrs. Clement is in London, they know Mr. Dennis is at a tennis party. Simple as A B C. And they don't need to go or come through the village. Just opposite the Vicarage gate is a public footpath, and from it you can turn into these same woods and come out whichever way you choose. Unless Mrs. Price Ridley were to come out of her front gate at that particular minute, it's all clear sailing. A great deal more so than climbing over walls. The side windows of the upper story of Mrs. Price Ridley's house do overlook most of that wall. No, depend upon it, that's the way he came."

It really seemed as though he must be right.

Inspector Slack came round to see me the following morning. He is, I think, thawing towards me. In time, he may forget the incident of the clock.

"Well, sir," he greeted me. "I've traced that telephone call that you received."

"Indeed?" I said eagerly.

"It's rather odd. It was put through from the North Lodge of Old Hall. Now that lodge is empty, the lodgekeepers have been pensioned off and the new lodgekeepers aren't in yet. The place was empty and convenient - a window at the back was open. No fingerprints on the instrument itself - it had been wiped clear. That's suggestive."

"How do you mean?"

"I mean that it shows that call was put through deliberately to get you out of the way. Therefore the murder was carefully planned in advance. If it had been just a harmless practical joke, the fingerprints wouldn't have been wiped off so carefully."

"No. I see that."

"It also shows that the murderer was well acquainted with Old Hall and its surroundings. It wasn't Mrs. Protheroe who put that call through. I've accounted for every moment of her time that afternoon. There are half a dozen servants who can swear that she was at home up till five-thirty. Then the car came round and drove Colonel Protheroe and her to the village. The colonel went to see Quinton, the vet, about one of the horses. Mrs. Protheroe did some ordering at the grocers and at the fish shop, and from there came straight down the back lane where Miss Marple saw her. All the shops agree she carried no handbag with her. The old lady was right."

"She usually is," I said mildly.

"And Miss Protheroe was over at Much Benham at 5.30."

"Quite so," I said. "My nephew was there too."

"That disposes of her. The maids seems all right - a bit hysterical and upset, but what can you expect? Of course, I've got my eye on the butler - what with giving notice and all. But I can't think he knows anything about it."

"Your inquiries seem to have had rather a negative result, inspector."

"They do and they do not, sir. There's one very queer thing has turned up - quite unexpectedly, I may say."

"Yes?"

"You remember the fuss that Mrs. Price Ridley, who lives next door to you, was kicking up yesterday morning? About being rung up on the telephone?"

"Yes?" I said.

"Well, we traced the call just to calm her - and where on this earth do you think it was put through from?"

"A call office?" I hazarded.

"No, Mr. Clement. That call was put through from Mr. Lawrence Redding's cottage."

"What?" I exclaimed, surprised.

"Yes. A bit odd, isn't it? Mr. Redding had nothing to do with it. At that time, 6.30, he was on his way to the Blue Boar with Dr. Stone in full view of the village. But there it is. Suggestive, oh? Someone walked into that empty cottage and used the telephone, who was it? That's two queer telephone calls in one day. Makes you think there's some connection between them. I'll eat my hat if they weren't both put through by the same person."

"But with what object?"

"Well, that's what we've got to find out. There seems no particular point in the second one, but there must be a point somewhere. And you see the significance? Mr. Redding's house used to telephone from. Mr. Redding's pistol. All throwing suspicion on Mr. Redding."

"It would be more to the point to have put through the first call from his house," I objected.