1We stayed in the garden a long time. By a kind of tacit consent, we did not discuss the horror that was weighing upon us.

2Instead Sophia talked affectionately of the dead woman, of things they had done, and games they had played as children with Nannie - and tales that the old woman used to tell them about Roger and their father and the other brothers and sisters.

3"They were her real children, you see. She only came back to us to help during the war when Josephine was a baby and Eustace was a funny little boy."

4There was a certain balm for Sophia in these memories and I encouraged her to talk.

5I wondered what Taverner was doing. Questioning the household, I suppose. A car drove away with the police photographer and two other men, and presently an ambulance drove up.

6Sophia shivered a little. Presently the ambulance left and we knew that Nannie's body had been taken away in preparation for an autopsy.

7And still we sat or walked in the garden and talked - our words becoming more and more of a cloak for our real thoughts.

8Finally, with a shiver, Sophia said:

9"It must be very late - it's almost dark. We've got to go in. Aunt Edith and Josephine haven't come back... Surely they ought to be back by now?"

10A vague uneasiness woke in me. What had happened? Was Edith deliberately keeping the child away from the Crooked House?

11We went in. Sophia drew all the curtains.

12The fire was lit and the big drawing room looked harmonious with an unreal air of bygone luxury. Great bowls of bronze chrysanthemums stood on the tables.

13Sophia rang and a maid who I recognised as having been formerly upstairs brought in tea. She had red eyes and sniffed continuously. Also I noticed that she had a frightened way of glancing quickly over her shoulder.

14Magda joined us, but Philip's tea was sent in to him in the library. Magda's rôle was a stiff frozen image of grief. She spoke little or not at all. She said once:

15"Where are Edith and Josephine? They're out very late."

16But she said it in a preoccupied kind of way.

17But I myself was becoming increasingly uneasy. I asked if Taverner were still in the house and Magda replied that she thought so. I went in search of him. I told him that I was worried about Miss de Haviland and the child.

18He went immediately to the telephone and gave certain instructions.

19"I'll let you know when I have news," he said.

20I thanked him and went back to the drawing room. Sophia was there with Eustace.

21Magda had gone.

22"He'll let us know if he hears anything," I said to Sophia.

23She said in a low voice:

24"Something's happened, Charles, something must have happened."

25"My dear Sophia, it's not really late yet."

26"What are you bothering about?" said Eustace. "They've probably gone to the cinema."

27He lounged out of the room. I said to Sophia: "She may have taken Josephine to a hotel - or up to London. I think she fully realised that the child was in danger - perhaps she realised it better than we did."

28Sophia replied with a sombre look that I could not quite fathom.

29"She kissed me goodbye..."

30I did not see quite what she meant by that disconnected remark, or what it was supposed to show. I asked if Magda was worried.

31"Mother? No, she's all right. She's no sense of time. She's reading a new play of Vavasour Jones called 'The Woman Disposes'. It's a funny play about murder - a female Bluebeard - cribbed from 'Arsenic and Old Lace' if you ask me, but it's got a good woman's part, a woman who's got a mania for being a widow."

32I said no more. We sat, pretending to read.

33It was half past six when Taverner opened the door and came in. His face prepared us for what he had to say.

34Sophia got up.

35"Yes?" she said.

36"I'm sorry. I've got bad news for you. I sent out a general alarm for the car. A motorist reported having seen a Ford car with a number something like that turning off the main road at Flackspur Heath - through the woods."

37"Not - the track to the Flackspur Quarry?"

38"Yes, Miss Leonides." He paused and went on: "The car's been found in the quarry. Both the occupants were dead. You'll be glad to know they were killed outright."

39"Josephine!" It was Magda standing in the doorway. Her voice rose in a wail.

40"Josephine... My baby."

41Sophia went to her and put her arms round her. I said: "Wait a minute."

42I had remembered something! Edith de Haviland writing a couple of letters at the desk, going out into the hall with them in her hand.

43But they had not been in her hand when she got into the car.

44I dashed out into the hall and went to the long oak chest. I found the letters - pushed inconspicuously to the back behind a brass tea urn.

45The uppermost was addressed to Chief Inspector Taverner.

46Taverner had followed me. I handed the letter to him and he tore it open. Standing beside him I read its brief contents.

47My expectation is that this will be opened after my death. I wish to enter into no details, but I accept full responsibility for the deaths of my brother-in-law Aristide Leonides and Janet Rowe (Nannie). I hereby solemnly declare that Brenda Leonides and Laurence Brown are innocent of the murder of Aristide Leonides. Enquiry of Dr Michael Chavasse, 783 Harley Street will confirm that my life could only have been prolonged for a few months. I prefer to take this way out and to spare two innocent people the ordeal of being charged with a murder they did not commit. I am of sound mind and fully conscious of what I write.

48Edith Elfrida de Haviland.

49As I finished the letter I was aware that Sophia, too, had read it - whether with Taverner's concurrence or not, I don't know.

50"Aunt Edith." murmured Sophia.

51I remembered Edith de Haviland's ruthless foot grinding bindweed into the earth.

52I remembered my early, almost fanciful, suspicions of her. But why - Sophia spoke the thought in my mind before I came to it.

53"But why Josephine? Why did she take Josephine with her?"

54"Why did she do it at all?" I demanded. "What was her motive?"

55But even as I said that, I knew the truth. I saw the whole thing clearly. I realised that I was still holding her second letter in my hand. I looked down and saw my own name on it.

56It was thicker and harder than the other one. I think I knew what was in it before I opened it. I tore the envelope along and Josephine's little black notebook fell out. I picked it up off the floor - it came open in my hand and I saw the entry on the first page...

57Sounding from a long way away, I heard Sophia's voice, clear and self controlled.

58"We've got it all wrong," she said. "Edith didn't do it."

59"No," I said.

60Sophia came closer to me - she whispered:

61"It was - Josephine - wasn't it? That was it, Josephine."

62Together we looked down on the first entry in the little black book, written in an unformed childish hand.

63"Today I killed grandfather..."