Elephants Can Remember - Agatha Christie [60]
Poirot shook his head sadly –
The doctor went on: ‘Yes. Well, I consider that in a mild way Dorothea Preston-Grey suffered from a form of mental disorder that was dangerous and that she could only be considered safe if she lived under supervision. This was not generally accepted, I may say, at the time, and my father did consider it most inadvisable. Once she had been committed to a very pleasant nursing home a very good treatment was given. And again, after a period of years she appeared to be completely sane, left the establishment, lived in an ordinary life with a very pleasant nurse more or less in charge of her, though considered in the household as a lady’s maid. She went about, made friends and sooner or later went abroad.’
‘To Malaya,’ said Poirot.
‘Yes. I see you’ve been correctly informed. She went to Malaya to stay with her twin sister.’
‘And there another tragedy happened?’
‘Yes. A child of a neighbour was attacked. It was thought at first by an amah, and afterwards I believe one of the native servants, a bearer, was suspected. But there again there seemed no doubt that Mrs Jarrow had, for one of those mental reasons known only to her, been guilty of the attack. There was no definite evidence, I understand, which could be brought against her. I think General – I forget his name now –’
‘Ravenscroft?’ said Poirot.
‘Yes, yes, General Ravenscroft agreed to arrange for her to go back to England and again undergo medical treatment. Is that what you wanted to know?’
‘Yes,’ said Poirot, ‘that is what I have partly heard already, but mainly I may say, by hearsay, which is not dependable. What I want to ask you was, this was a case concerned with identical twins. What about the other twin? Margaret Preston-Grey. Afterwards the wife of General Ravenscroft. Was she likely to be affected by the same malady?’
‘There was never any medical case about her. She was perfectly sane. My father was interested, visited her once or twice and talked to her because he had so often seen cases of almost identical illnesses or mental disturbances happen between identical twins who hadz started life very devoted to each other.’
‘Only started life, you said?’
‘Yes. On certain occasions a state of animosity can arise between identical twins. It follows on a first keen protective love one for the other, but it can degenerate into something which is nearer hatred, if