'What made you think she was hiding something?'
'When a married woman tells me that she is single, then I know that she is lying to me. Nobody as fetching as Hannah Critchlow could reach that age without having had dozens of proposals.'
'She might have turned them all down,' said Madeleine.
'That was not the impression I got. She not only has a husband,' Colbeck went on, 'but my guess is that he's connected with a railway company in some way – though not the GWR.'
'Why do you say that?'
'Because of a criticism she made to me about the broad gauge. It was not the kind of remark I'd expect a woman to make – unless her name was Madeleine Andrews, that is. But then, you have a genuine fascination with railways.'
'It's only natural. Father is an engine driver.'
'Hannah Critchlow is different,' he said. 'When she talks about railways, she sounds as if she's quoting somebody else – her husband, most probably. It was another instance of her concealing something from me. And I didn't believe for a second that she had chanced upon this railway engineer at an art exhibition.'
'Why not?'
'Wait until you meet her, Madeleine.'
'What do you mean?'
'She's a very self-possessed woman with typical English reserve. Such people do not make casual conversation with foreigners. I fancy that she and Gaston Chabal became friends elsewhere. You'd be doing me a huge favour if you could find out the truth.'
'What makes you think that she'd confide in me, Robert?'
'You're a woman. You might be able to break through her defences. It took an enormous effort for her to come forward like this. She must have found Scotland Yard – and me, for that matter – rather intimidating.'
'You're not in the least intimidating,' she said, squeezing his arm affectionately. 'You're always extremely charming.'
'Well, my charm did not work on her, Madeleine – yours might.'
He spent the rest of the journey schooling her in what to say and how to say it. Madeleine was an attentive pupil. It was not the first time he had employed her on an unofficial basis and she had proved extremely helpful in the past. Colbeck knew that he could rely on her to be gently persuasive.
'Does the superintendent know about this?' she said.
'Mr Tallis?' He gave a dry laugh. 'Hardly. You know his opinion of women – they should be neither seen nor heard. If he realised what I was doing, he'd probably roast me over a spit.'
'Even if your methods bring results?'
'Even then, Madeleine.'
They eventually reached their destination in the Strand and pulled up outside a fashionable hotel. He gave her another kiss.
'Good luck!' he said.
It had taken Hannah Critchlow almost a week to gather up enough courage to get in touch with Inspector Colbeck. Now that she had done so, she felt both relieved and anxious. But her overriding emotion was sadness and, no sooner did she return to her hotel, than she burst into tears. It took her a long time to compose herself. When there was a tap on her door, she assumed that it would be a member of the hotel staff. Opening the door, she saw instead that she had a visitor.
'Miss Critchlow?'
'Yes,' said the other, guardedly.
'My name is Madeleine Andrews. I wonder if I might have a private word with you? I'm a friend of Inspector Colbeck.'
'Then why are you bothering me? We've nothing to say to each other. I told the inspector all that I know.'
'That's untrue,' said Madeleine, holding her ground.
'Good day to you.'
'As Hannah Critchlow, you gave him a certain amount of information but, as Mrs Marklew, you may be able to provide more. Why give him one name when you are staying here under another?'
Hannah was suspicious. 'Who are you?'
'I told you. I'm a friend of the inspector. If I explained how he and I came to meet, you'll understand why I'm here.'
Hannah Marklew hesitated. She was unsettled by the fact that her disguise had been so easily pierced and she knew that she could be severely reproached for misleading a detective. At the same time, she found Madeleine personable and unthreatening. There was another telling factor. Her visitor had a sympathetic manner. She was on Hannah's side.
'You'd better come in, Miss Andrews. It is 'Miss', I presume?'
'Yes, Mrs Marklew.'
Madeleine went into the room and the other woman shut the door behind them. Hannah indicated a chair but she remained standing when Madeleine sat down.
'What did Inspector Colbeck tell you about me?' said Hannah.
'That you had provided the name of the murder victim and thereby moved the investigation on to another stage. He also told me how eager you were to see the killer brought to justice.'
'I am, Miss Andrews.'
'Then he needs all the help he can get in order to do that.'
Hannah was still wary. 'How do you know the inspector?'
'The same way that you do,' replied Madeleine. 'As a result of a crime. Somebody I know was attacked on the railway in the course of a robbery and Inspector Colbeck was put in charge of the case. Luckily, the injured man survived but it took him months to recover and he still carries the scars from that assault. Because of Inspector Colbeck's efforts, the villain responsible was eventually apprehended with his accomplices.'
'And who exactly was the victim?'
'My father. He almost died.'
Madeleine spoke with quiet intensity. She explained that her father had been in a deep coma and was not expected to live. More suffering had followed. In a desperate attempt to impede the police investigation, she had been abducted and held in captivity until rescued by Robert Colbeck.
'You can see why I have such faith in the inspector,' she said.
'Yes, Miss Andrews.'
'It's the reason I'm so willing to help him now.'
'But I have nothing else to add.'
'I believe that you do, Mrs Marklew. You came all the way from Liverpool to see Inspector Colbeck in person. That suggests it was a matter of importance to you. Otherwise,' Madeleine pointed out, 'you could simply have informed the local police, or even made contact with Scotland Yard by anonymous letter. The inspector believes that you have a personal reason to see this crime solved.'
Hannah studied her carefully as if weighing her in the balance. It was certainly easier talking to a woman in the confines of a hotel room than discussing the case with a detective inspector in an office. Madeleine, she sensed, was discreet. Also, there was a bond between them. Both had endured great pain as a result of a crime committed on the London and North-West Railway. Hannah wondered if she could ease her pain by talking about it.
'Inspector Colbeck is very perceptive,' she said. 'I did know Gaston Chabal rather better than I indicated, but I did not wish to admit that. It might have caused complications.'
'With your husband?'
'Yes, Miss Andrews.' Hannah sat down. 'I love him very much and I do not want to hurt him in any way. The simple fact is that Alexander – my husband – is somewhat older than me and is always preoccupied with business affairs.'
'The inspector thought that he had a connection with railways.'
'It's more than a connection. He's one of the directors of the London and North-West Railway. That's what
