Poirot said: 'Have you ever heard of poisoning by arsenic?'
A flicker of quick furtive interest came into the girl's sullen face.
She said: 'So that's what it was in the medicine bottle?'
'What medicine bottle?'
Beatrice said: 'One of the bottles of medicine what that Miss Moncrieffe made up for the Missus. Nurse was all upset – I could see that. Tasted it, she did, and smelt it, and then poured it away down the sink and filled up the bottle with plain water from the tap. It was white medicine like water, anyway. And once, when Miss Moncrieffe took up a pot of tea to the Missus, Nurse brought it down again and made it fresh – said it hadn't been made with boiling water but that was just my eye, that was! I thought it was just the sort of fussing way nurses have at the time – but I dunno – it may have been more than that.'
Poirot nodded.
He said: 'Did you like Miss Moncrieffe, Beatrice?'
'I didn't mind her… A bit standoffish. Of course, I always knew as she was sweet on the doctor. You'd only to see the way she looked at him.'
Again Poirot nodded his head.
He went back to the inn. There he gave certain instructions to George.
VI
Dr Alan Garcia, the Home Office Analyst, rubbed his hands and twinkled at Hercule Poirot. He said: 'Well, this suits you, M. Poirot, I suppose? The man who's always right.'
Poirot said: 'You are too kind.'
'What put you on to it? Gossip?'
'As you say – 'Enter Rumour, painted full of tongues.''
The following day Poirot once more took a train to Market Loughborough.
Market Loughborough was buzzing like a beehive. It had buzzed mildly ever since the exhumation proceedings. Now that the findings of the autopsy had leaked out, excitement had reached fever heat.
Poirot had been at the inn for about an hour and had just finished a hearty lunch of steak and kidney pudding washed down by beer when word was brought to him that a lady was waiting to see him.
It was Nurse Harrison. Her face was white and haggard.
She came straight to Poirot.
'Is this true? Is this really true, M. Poirot?'
He put her gently into a chair.
'Yes. More than sufficient arsenic to cause death has been found.'
Nurse Harrison cried: 'I never thought – I never for one moment thought -' and burst into tears.
Poirot said gently: 'The truth had to come out, you know.'
She sobbed. 'Will they hang him?'
Poirot said: 'A lot has to be proved still. Opportunity – access to poison – the vehicle in which it was administered.'
'But supposing, M. Poirot, that he had nothing to do with it – nothing at all.'
'In that case,' Poirot shrugged his shoulders, 'he will be acquitted.'
Nurse Harrison said slowly: 'There is something – something that, I suppose, I ought to have told you before – but I didn't think that there was really anything in it. It was just queer.'
'I knew there was something,' said Poirot. 'You had better tell it to me now.'
'It isn't much. It's just that one day when I went down to the dispensary for something, Jean Moncrieffe was doing something rather – odd.'
'Yes?'
'It sounds so silly. It's only that she was filling up her powder compact – a pink enamel one -'
'Yes?'
'But she wasn't filling it up with powder – with face powder, I mean. She was tipping something into it from one of the bottles out of the poison cupboard. When she saw me she started and shut up the compact and whipped it into her bag – and put back the bottle quickly into the cupboard so that I couldn't see what it was. I daresay it doesn't mean anything – but now that I know that Mrs Oldfield really was poisoned -' She broke off.
Poirot said: 'You will excuse me?'
He went out and telephoned to Detective Sergeant Grey of the Berkshire Police.
Hercule Poirot came back and he and Nurse Harrison sat in silence.
Poirot was seeing the face of a girl with red hair and hearing a clear hard voice say: 'I don't agree.' Jean Moncrieffe had not wanted an autopsy. She had given a plausible enough excuse, but the fact remained. A competent girl – efficient – resolute. In love with a man who was tied to a complaining invalid wife, who might easily live for years since, according to Nurse Harrison, she had very little the matter with her.
Hercule Poirot sighed.
Nurse Harrison said: 'What are you thinking of?'
Poirot answered: 'The pity of things…'
Nurse Harrison said: 'I don't believe for a minute he knew anything about it.'
Poirot said: 'No. I am sure he did not.'
The door opened and Detective Sergeant Grey came in. He had something in his hand, wrapped in a silk handkerchief. He unwrapped it and set it carefully down. It was a bright rose pink enamel compact.
Nurse Harrison said: 'That's the one I saw.'
Grey said: 'Found it pushed right to the back of Miss Moncrieffe's bureau drawer. Inside a handkerchief sachet. As far as I can see there are no fingerprints on it, but I'll be careful.'
With the handkerchief over his hand he pressed the spring. The case flew open.
Grey said: 'This stuff isn't face powder.'
He dipped a finger and tasted it gingerly on the tip of his tongue.
'No particular taste.'
Poirot said: 'White arsenic does not taste.'
Grey said: 'It will be analysed at once.' He looked at Nurse Harrison. 'You can swear to this being the same case?'
'Yes. I'm positive. That's the case I saw Miss Moncrieffe with in the dispensary about a week before Mrs Oldfield's death.'
Sergeant Grey sighed. He looked at Poirot and nodded.
The latter rang the bell.
'Send my servant here, please.'
George, the perfect valet, discreet, unobtrusive, entered and looked inquiringly at his master.
Hercule Poirot said: 'You have identified this powder compact, Miss Harrison, as one you saw in the possession of Miss Moncrieffe over a year ago. Would you be surprised to learn that this particular case was sold by Messrs. Woolworth only a few weeks ago and that, moreover, it is of a pattern and colour that has only been manufactured for the last three months?'
Nurse Harrison gasped. She stared at Poirot, her eyes round and dark.
Poirot said: 'Have you seen this compact before, Georges?'
George stepped forward.
'Yes, sir. I observed this person, Nurse Harrison, purchase it at Woolworth's on Friday the 18th. Pursuant to your instructions I followed this lady whenever she went out. She took a bus over to Darnington on the day I have mentioned and purchased this compact. She took it home with her. Later, the same day, she came to the house in which Miss Moncrieffe lodges. Acting as by your instructions, I was already in the house. I observed her go into Miss Moncrieffe's bedroom and hide this in the back of the bureau drawer. I had a good view through the crack of the door. She then left the house believing herself unobserved. I may say that no one locks their front doors down here and it was dusk.'
