'It must be a frustrating task,' I said.
'And how is the investigation going?'
'These things take time, but we're confident of a result.'
'I understand there's been an arrest.'
I eyed him curiously. 'That's right. How did you know?'
He smiled. 'I'm addicted to the news, I'm afraid, and now I have the internet on my laptop, I'm always checking what's happening. The local news said a man surrendered himself to the police today.'
'That's correct, but I can't comment any further on it, as you can appreciate.'
'Of course, of course, I understand. Forgive my inquisitiveness, Sergeant, I just always like to know what's going on.'
'Don't we all?' I told him.
A pregnant pause followed as Roberts presumably tried to think of something else to ask, but I guess he must have realized he wasn't going to get much information out of me because he called it a day. 'Well, I mustn't hold you up. Good luck with the case.' He put out his hand and I shook it.
He said his goodbyes, excused himself, and I turned to Carla. She was looking even better than she had done yesterday and I had no choice but to try and picture her naked.
'I was just about to finish for the night, Mr Milne. It's been a very long day.'
'And I appreciate you seeing me, Ms Graham. Look, is there a pub near here? Maybe we can talk in less formal surroundings, if that would make things easier?' Christ, that came out easily.
She raised one of her eyebrows and gave me a funny look. Maybe I'd overstepped the mark, but you don't win prizes without buying tickets. 'Are you suggesting we go out for a drink?' There was enough of a hint of playfulness in her voice to tell me she wasn't offended.
I smiled. 'Well, technically, I suppose. But please don't feel it's your civic duty. We can talk here if you'd prefer.'
She sighed. 'There's a pub round the corner that's not too bad. We can talk there if you want, but I can't stay too long. I'm exhausted, and I've got another long day tomorrow.'
The pub was a two-hundred-yard walk from Coleman House, far enough away to avoid seeing any of the home's clients. It was a huge place, built on two storeys, and was clearly popular with the student crowd. Although busy, it was spacious enough to accommodate everyone amply and there were still a few tables spare.
As we walked to the bar, Carla said hello to two people she knew – both men, both younger than me – and I found myself feeling mildly jealous. I ordered a vodka orange in a superficial attempt to appear sophisticated, and a vodka tonic for her.
'I thought police officers weren't meant to drink on duty,' she said when we'd found a corner table a respectful distance from anyone else.
'Well, I'm not officially on duty.'
She raised both her eyebrows this time. 'Oh. I was under the impression you wanted to see me regarding the investigation.'
'I do. That's the reason I'm here, but what I want to talk to you about is off the record. I'm here in an unofficial capacity.'
She looked interested, and now I had a bit of a problem. If I was honest with myself, the only reason I was there was to see her; everything else was somewhat peripheral. I was concerned about what Anne had told me but I wasn't quite sure how I was going to explain that.
'Go on.'
She was watching me closely, and I found myself watching her back. She had beautiful brown eyes that seemed to swallow you up. Not for the first time I found myself wondering what the fuck she was doing managing a children's home.
'I ran into one of your clients this evening. Anne. She was in the middle of being abducted by one of her prospective customers.'
She looked genuinely concerned. 'Is she all right?'
'Yeah, she's all right. But she was lucky, Ms Graham. If I hadn't been there, I don't know what would have happened. Somehow I don't think it would have been a happy ending.'
'These girls…' She shook her head slowly. 'There's no telling them. It's as if they've got a death wish.'
'Well, it could be a wish that ends up being fulfilled.'
'I know, I know. What's so tragic about the whole thing is that Anne's got so much intelligence. She could really do something with her life if only she'd listen to people. Where is she now?'
'I took her back to your place. That's when I came in to see you.'
'You should have told me.'
'Don't worry. She's OK. She took it remarkably well. We talked for a while afterwards and she seemed concerned, particularly about Molly Hagger's disappearance. She seemed to think that Molly didn't just walk out-'
'What did she think had happened to her?'
'She wouldn't say for sure, but I think she felt something untoward had happened.' I briefly explained the reasons Anne had given me, without mentioning Mark Wells by name. When I'd finished I had to admit to myself that they sounded pretty flimsy.
Carla took a packet of Silk Cut out of her handbag and put one in her mouth, before realizing that she hadn't offered me one, and hastily pointing the pack in my direction.
I declined. 'My throat demands something stronger,' I said, taking a pack of Benson & Hedges out of my shirt pocket.
She lit my cigarette for me and I got a vague but pleasant smell of her perfume as I leaned forward.
'I thought you said you'd arrested someone for the girl's murder.'
'We have, and we're questioning him very closely, but we have to keep our options open. It might be that he's also responsible for murdering Molly Hagger. It might be that he's not responsible for anything.'
She took an elegant draw on her cigarette. 'Do you think she's dead?' she asked.
'I don't know. Anne was adamant that Molly Hagger would never have gone away of her own accord, but she could well be wrong.' I paused, then decided to jump in at the deep end. 'You can't think of any other girls who've left the home in the last few months who, perhaps, you didn't expect to lose?'
Carla gave me a reproachful look. 'Mr Milne, I understand your concerns, and I sympathize with them. If anything's happening to young girls it's essential it gets uncovered, but, with due respect, not every female client at Coleman House is a teenage prostitute. Some get involved in that sort of thing, I won't deny that, but they're in a minority, and we certainly don't keep the streets of King's Cross stocked up with underage girls. There are dozens of care homes in a three-mile radius of here who have exactly the same problems as we do. Do you really think it's likely that our clients are being picked off one by one by some unknown murderer?'
'No, no, of course not. I'm sorry if it came across like that. I'm just trying to look at every avenue.' I took a sip of my drink, noting that hers was getting dangerously near to the bottom of the glass. I didn't want her to go – not yet – but I wasn't doing too well at charming her into staying. 'Will you do me a favour, though? Just to indulge me.'
'What?'
'Will you just let me know if any of your clients absconds, or goes missing under suspicious circumstances? Please. Anything you say will be treated with the utmost confidentiality.'
She nodded. 'All right, but we get that happening a lot of the time, as I said to you and your colleague yesterday. Most of the time, it's just that. Them absconding. Looking for greener pastures. It's the same for all the homes, especially in a city the size of this one.'
'Yeah, I know. That's the problem. If you were, say, a killer, and you didn't want to get caught, they're just the type of girls you'd go for. Ones who can disappear without a trace and no-one's too worried.'
'But I do worry – we all worry – for our clients because we know the pitfalls that await them round every corner. But without resources, and without authority…'
'Yeah, I know. What can you do?'
'Exactly. But if any of the girls goes missing, I will let you know.'
'Thanks. I appreciate it.' I took a drag on my cigarette, knowing I had to do something to keep the conversation alive if I was going to keep her here. 'It seems ridiculous that these kids can just do exactly what they want when they're so, you know, unequipped for life.'