‘… and the daft women who fall off rooftops.’

‘Those too.’ He gestured towards the concrete mixer, the piles of bricks. ‘I do this so I can live with that. Beer?’ He climbed into the railway carriage, motioning for me to join him.

It was no longer a carriage inside. It had a small, immaculately laid-out kitchen area, and an L-shaped upholstered seat at the end, though it still carried the faint smell of beeswax and tweedy passengers. ‘I don’t like mobile homes,’ he said, as if in explanation. He waved to the seat, ‘Sit,’ then pulled a cold beer from the fridge, cracking it open and handing me the bottle. He set a kettle on the stove for himself.

‘You’re not drinking?’

He shook his head. ‘I found after a couple of years on the job that I’d come home and have a drink to relax. And then it was two. And then I found I couldn’t relax until I’d had those two, or maybe three.’ He opened a caddy, dropped a teabag into a mug. ‘And then I … lost someone close to me, and I decided that either I stopped or I would never stop drinking again.’ He didn’t look at me while he said this, just moved around the railway carriage, a bulky, yet oddly graceful presence within its narrow walls. ‘I do have the odd beer, but not tonight. I’m driving you home later.’

Comments like that took the weirdness out of sitting in a railway carriage with a man I didn’t really know. How could you maintain a reserve with someone who had tended your broken, partially unclothed body? How could you feel anxious around a man who had already told you of his plan to take you home again? It was as if the manner of our first meeting had removed the normal, awkward obstacles to getting to know someone. He had seen me in my underwear. Hell, he had seen under my actual skin. It meant I felt at ease around Sam in a way I didn’t with anyone else.

The carriage reminded me of the gypsy caravans I had read about in childhood, where everything had a place, and there was order in a confined space. It was homey, but austere, and unmistakably male. It smelt agreeably of sun-warmed wood, soap and bacon. A fresh start, I guessed. I wondered what had happened to his and Jake’s old home. ‘So … um … what does Jake think of it?’

He sat down at the other end of the bench with his tea. ‘He thought I was mad at first. Now he quite likes it. He does the animals when I’m on shift. In return I’ve promised to teach him to drive around the field once he turns seventeen.’ He lifted a mug. ‘God help me.’

I raised my beer in return.

Perhaps it was the unexpected pleasure of being out on a warm Friday evening with a man who held your eye as he spoke and had the kind of hair you slightly wanted to ruffle with your fingers, or maybe it was just the second beer, but I finally started to enjoy myself. It got stuffy in the carriage, so we moved outside onto two fold-up chairs, and I watched the chickens peck around in the grass, which was oddly restful, and listened to Sam’s tales of obese patients, who required four teams to lift them out of their homes, and young gang members, who tried to attack each other even as they were being stitched up in the back of his rig. As we talked I found myself sneaking surreptitious glances at him, at the way his hands held his mug, at his unexpected smiles, which caused three perfect lines to span out from the corner of each eye as if they had been drawn with fine-point precision.

He told me about his parents: his father a retired fireman, his mother a nightclub singer, who had given up her career for her children. (‘I think it’s why your outfit spoke to me. I’m comfortable with glitter.’) He didn’t mention his late wife by name, but observed that his mother worried about the ongoing lack of a feminine influence in Jake’s life. ‘She comes and scoops him up once a month and takes him back to Cardiff so she and her sisters can coo over him and feed him up and make sure he has enough socks.’ He rested his elbows on his knees. ‘He moans about going, but he secretly loves it.’

I told him about Lily’s return, and he winced at my tale of her meeting with the Traynors. I told him about her perplexing moods, and her erratic behaviour, and he nodded, as if this were all to be expected. When I told him about Lily’s mother he shook his head. ‘Just because they’re wealthy doesn’t make them better parents,’ he said. ‘If she was on benefits, that mother would probably get a little visit from Social Services.’ He lifted a mug to me. ‘It’s a nice thing you’re doing, Louisa Clark.’

‘I’m not sure I’m doing it very well.’

‘Nobody ever feels they’re doing well with teenagers,’ he said. ‘I think that’s kind of the point of them.’

It was hard to reconcile this Sam, at ease in his home, caring for his chickens, with the sobbing, skirt-chasing version we heard about in the Moving On Circle. But I knew very well how the persona you chose to present to the world could be very different from what was inside. I knew how grief could make you behave in ways you couldn’t even begin to understand. ‘I love your railway carriage,’ I said. ‘And your invisible house.’

‘Then I hope you’ll come again,’ he said.

The compulsive shagger. If this was how he picked up women, I thought a little wistfully, then, boy, he was good. It was a potent mix: the gentlemanly grieving father, the rare smiles, the way he could scoop up a hen one-handed and the hen actually looked happy about it. I would not allow myself to become one of the psycho-girlfriends, I told myself repeatedly. But there was a sneaking pleasure to be had in just flirting gently with a handsome man. It was nice to feel something other than anxiety, or mute fury, the twin emotions that seemed to make up so much of my daily life. The only other encounters I’d had with the opposite sex over the last several months had been fuelled by alcohol and ended with a taxi and tears of self-loathing in the shower.

What do you think, Will? Is this okay?

It had grown darker, and we watched as the chickens clucked their way indignantly into their coop.

Sam watched them. He leant back in his chair. ‘I get the feeling, Louisa Clark, that when you’re talking to me there’s a whole other conversation going on somewhere else.’

I wanted to come back with a smart answer. But he was right, and there was nothing I could say.

‘You and I. We’re both skirting around something.’

‘You’re very direct.’