"Well, it is astounding. You know that unfinished letter that Protheroe was writing when he was killed?"

"Yes."

"We got an expert on it - to say whether the 6.20 was added by a different hand. Naturally we sent up samples of Protheroe's handwriting. And do you know the verdict? That letter was never written by Protheroe at all."

"You mean a forgery?"

"It's a forgery. The 6.20 they think is written in a different hand again - but they're not sure about that. The heading is in a different ink, but the letter itself is a forgery. Protheroe never wrote it."

"Are they certain?"

"Well, they're as certain as experts ever are. You know what an expert is! Oh! but they're sure enough."

"Amazing," I said. Then a memory assailed me.

"Why,'' I said, "I remember at the time Mrs. Protheroe said it wasn't like her husband's handwriting at all, and I took no notice."

"Really?"

"I thought it one of those silly remarks women will make. If there seemed one thing sure on earth it was that Protheroe had written that note."

We looked at each other.

"It's curious," I said slowly. "Miss Marple was saying this evening that that note was all wrong."

"Confound the woman, she couldn't know more about it if she had committed the murder herself."

At that moment the telephone bell rang. There is a queer kind of psychology about a telephone bell. It rang now persistently and with a kind of sinister significance.

I went over and took up the receiver.

"This is the Vicarage," I said. "Who's speaking?"

A strange, high-pitched hysterical voice came over the wire:

"I want to confess," it said. "My God, I want to confess."

"Hallo," I said, "hallo. Look here you've cut me off. What number was that?"

A languid voice said it didn't know. It added that it was sorry I had been troubled.

I put down the receiver, and turned to Melchett.

"You once said," I remarked, "that you would go mad if any one else accused themselves of the crime."

"What about it?"

"That was someone who wanted to confess… And the Exchange has cut us off."

Melchett dashed over and took up the receiver.

"I'll speak to them."

"Do," I said. "You may have some effect. I'll leave you to it. I'm going out. I've a fancy I recognized that voice."

I hurried down the village street. It was eleven o'clock, and at eleven o'clock on a Sunday night the whole village of St. Mary Mead might be dead. I saw, however, a light in a first floor window as I passed, and, realising that Hawes was still up, I stopped and rang the door bell.

After what seemed a long time, Hawes's landlady, Mrs. Sadler, laboriously unfastened two bolts, a chain, and turned a key and peered out at me suspiciously.

"Why, it's Vicar!" she exclaimed.

"Good-evening," I said. "I want to see Mr. Hawes. I see there's a light in the window, so he's up still."

"That may be. I've not seen him since I took up his supper. He's had a quiet evening - no one to see him, and he's not been out."

I nodded, and passing her, went quickly up the stairs. Hawes has a bedroom and sitting-room on the first floor.

I passed into the latter. Hawes was lying back in a long chair asleep. My entrance did not wake him. An empty cachet box and a glass of water, half-full, stood beside him.

On the floor, by his left foot, was a crumpled sheet of paper with writing on it. I picked it up and straightened it out.

It began: "My dear Clement -"

I read it through, uttered an exclamation and shoved it into my pocket. Then I bent over Hawes and studied him attentively.

Next, reaching for the telephone which stood by his elbow, I gave the number of the Vicarage. Melchett must have been still trying to trace the call, for I was told that the number was engaged. Asking them to call me, I put the instrument down again.

I put my hand into my pocket to look at the paper I had picked up once more. With it, I drew out the note that I had found in the letter box and which was still unopened.

Its appearance was horribly familiar. It was the same handwriting as the anonymous letter that had come that afternoon.

I tore it open.

I read it once - twice - unable to realise its contents.

I was beginning to read it a third time when the telephone rang. Like a man in a dream I picked up the receiver and spoke.

"Hallo?"

"Hallo."

"Is that you, Melchett?"

"Yes, where are you? I've traced that call. The number is -"

"I know the number."

"Oh! good. Is that where you are speaking from?"

"Yes."

"What about that confession?"

"I've got the confession all right."

"You mean you've got the murderer?"

I had then the strongest temptation of my life. I looked at Hawes. I looked at the crumpled letter. I looked at the anonymous scrawl. I looked at the empty cachet box with the name of Cherubim on it. I remembered a certain casual conversation.

I made an immense effort.

"I - don't know," I said. "You'd better come round."

And I gave him the address.

Then I sat down in the chair opposite Hawes to think.

I had two clear minutes in which to do so.

In two minutes time, Melchett would have arrived.

I took up the anonymous letter and read it through again for the third time.

Then I closed my eyes and thought…

I don't know how long I sat there - only a few minutes in reality, I suppose. Yet it seemed as though an eternity had passed when I heard the door open and, turning my head, looked up to see Melchett entering the room.

He stared at Hawes asleep in his chair, then turned to me.

"What's this, Clement? What does it all mean?"

Of the two letters in my hand I selected one and passed it to him. He read it aloud in a low voice.

"MY DEAR CLEMENT, - It is a peculiarly unpleasant thing that I have to say. After all, I think I prefer writing it. We can discuss it at a later date. It concerns the recent peculations. I am sorry to say that I have satisfied myself beyond any possible doubt as to the identity of the culprit. Painful as it is for me to have to accuse an ordained priest of the church, my duty is only too painfully clear. An example must be made and -"

He looked at me questioningly. At this point the writing tailed off in an undistinguishable scrawl where death had overtaken the writer's hand.

Melchett drew a deep breath, then looked at Hawes.

"So that's the solution! The one man we never even considered. And remorse drove him to confess!"

"He's been very queer lately," I said.

Suddenly Melchett strode across to the sleeping man with a sharp exclamation. He seized him by the shoulder and shook him, at first gently, then with increasing violence.

"He's not asleep! He's drugged! What's the meaning of this?"

His eye went to the empty cachet box. He picked it up.

"Has he -"

"I think so," I said. "He showed me these the other day. Told me he'd been warned against an overdose. It's his way out, poor chap. Perhaps the best way. It's not for us to judge him."

But Melchett was Chief Constable of the County before anything else. The arguments that appealed to me had no weight with him. He had caught a murderer and he wanted his murderer hanged.

In one second he was at the telephone, jerking the receiver up and down impatiently until he got a reply. He asked for Haydock's number. Then there was a further pause during which he stood, his ear to the telephone and his eyes on the limp figure in the chair.

"Hallo - hallo - hallo - is that Dr. Haydock's? Will the doctor come round at once to High Street? Mr. Hawes'. It's urgent… what's that?… Well, what number is it then?… Oh, sorry."