The Mirror Crack'd - Agatha Christie [70]
‘What are elaborate patterns to you? Nothing at all.’
‘I ought really, I suppose, with my bad eyesight, to stick to plain knitting.’
‘You’d find that very boring. Well, I’m flattered that you took my advice.’
‘Don’t I always take your advice, Doctor Haydock?’
‘You do when it suits you,’ said Dr Haydock.
‘Tell me, Doctor, was it really knitting you had in mind when you gave me that advice?’
He met the twinkle in her eyes and twinkled back at her.
‘How are you getting on with unravelling the murder?’ he asked.
‘I’m afraid my faculties aren’t quite what they were,’ said Miss Marple, shaking her head with a sigh.
‘Nonsense,’ said Dr Haydock. ‘Don’t tell me you haven’t formed some conclusions.’
‘Of course I have formed conclusions. Very definite ones.’
‘Such as?’ asked Haydock inquiringly.
‘If the cocktail glass was tampered with that day — and I don’t see quite how that could have been done —’
‘Might have had the stuff ready in an eye-dropper,’ suggested Haydock.
‘You are so professional,’ said Miss Marple admiringly. ‘But even then it seems to me so very peculiar that nobody saw it happen.’
‘Murder should not only be done, but be seen done! Is that it?’
‘You know exactly what I mean,’ said Miss Marple.
‘That was a chance the murderer had to take,’ said Haydock.
‘Oh quite so. I’m not disputing that for a moment. But there were, I have found by inquiry and adding up the persons, at least eighteen to twenty people on the spot. It seems to me that amongst twenty people somebody must have seen that action occur.’
Haydock nodded. ‘One would think so, certainly. But obviously no one did.’
‘I wonder,’ said Miss Marple thoughtfully.
‘What have you got in mind exactly?’
‘Well, there are three possibilities. I’m assuming that at least one person would have seen something. One out of twenty. I think it’s only reasonable to assume that.’
‘I think you’re begging the question,’ said Haydock, ‘and I can see looming ahead one of those terrible exercises in probability where six men have white hats and six men have black and you have to work it out by mathematics how likely it is that the hats will get mixed up and in what proportion. If you start thinking about things like that you would go round the bend. Let me assure you of that!’
‘I wasn’t thinking of anything like that,’ said Miss Marple. ‘I was just thinking of what is likely —’
‘Yes,’ said Haydock thoughtfully, ‘you’re very good at that. You always have been.’
‘It is likely, you know,’ said Miss Marple, ‘that out of twenty people one at least should be an observant one.’
‘I give in,’ said Haydock. ‘Let’s have the three possibilities.’
‘I’m afraid I’ll have to put them in rather sketchily,’ said Miss Marple. ‘I haven’t quite thought it out. Inspector Craddock, and probably Frank Cornish before him, will have questioned everybody who was there so the natural thing would be that whoever saw anything of the kind would have said so at once.’
‘Is that one of the possibilities?’
‘No, of course it isn’t,’ said Miss Marple, ‘because it hasn’t happened. What you have to account for is if one person did see something why didn’t that person say so?’
‘I’m listening.’
‘Possibility One,’ said Miss Marple, her cheeks going pink with animation. ‘The person who saw it didn’t realise what they had seen. That would mean, of course, that it would have to be rather a stupid person. Someone, let us say, who can use their eyes but not their brain. The sort of person who, if you asked them. “Did you see anyone put anything in Marina Gregg’s glass?” would answer, “Oh, no,” but if you said “Did you see anyone put their hand over the top of Marina Gregg’s glass?” would say “Oh, yes, of course I did.” ’
Haydock laughed. ‘I admit,’ he said, ‘that one never quite allows for the moron in our midst. All right, I grant you Possibility One. The moron saw it, the moron didn’t grasp what the action meant. And the second possibility?’
‘This one’s far-fetched, but I do