My grandmother had died a month previously after a long illness, and that summer was veiled in a thin layer of sadness; it gently smothered everything we did, muting mine and my sister's tendencies to the dramatic, and cancelling our usual summer routines of brief holidays and days out. My mother stood most days at her washing-up bowl, her back rigid with the effort of trying to suppress her tears, while Dad disappeared to work each morning with a grimly determined expression, returning hours later shiny-faced from the heat and unable to speak before he had cracked open a beer. My sister was home from her first year at university, her head already somewhere far from our small town. I was twenty and would meet Patrick in less than three months. We were enjoying one of those rare summers of utter freedom -- no financial responsibility, no debts, no time owing to anybody. I had a seasonal job and all the hours in the world to practise my make-up, put on heels that made my father wince, and just generally work out who I was.

It was almost seven years ago, in the last lazy, heat-slurred days of July, when the narrow streets around the castle were thick with tourists, and the air filled with the sound of their meandering footsteps and the chimes of the ever-present ice cream vans that lined the top of the hill.

I can tell you the exact day I stopped being fearless.

I dressed normally, in those days. Or, I should say, I dressed like the other girls in town -- long hair, flicked over the shoulder, indigo jeans, T-shirts tight enough to show off our tiny waists and high breasts. We spent hours perfecting our lipgloss, and the exact shade of a smokey eye. We looked good in anything, but spent hours complaining about non-existent cellulite and invisible flaws in our skin.

And I had ideas. Things I wanted to do. One of the boys I knew at school had taken a round-the-world trip and come back somehow removed and unknowable, like he wasn't the same scuffed eleven-year-old who used to blow spit bubbles during double French. I had booked a cheap flight to Australia on a whim, and was trying to find someone who might come with me. I liked the exoticism his travels gave him, the unknownness. He had blown in with the soft breezes of a wider world, and it was weirdly seductive. Everyone here knew everything about me, after all. And with a sister like mine, I was never allowed to forget any of it.

It was a Friday, and I had spent the day working as a car park attendant with a group of girls I had known at school, steering visitors to a craft fair held in the grounds of the castle. The whole day was punctuated with laughter, with fizzy drinks guzzled under a hot sun, the sky blue, light glinting off the battlements. I don't think there was a single tourist who didn't smile at me that day. People find it very hard not to smile at a group of cheerful, giggling girls. We were paid £30, and the organizers were so pleased with the turnout that they gave us an extra fiver each. We celebrated by getting drunk with some boys who had been working on the far car park by the visitor centre. They were well spoken, sporting rugby shirts and floppy hair. One was called Ed, two of them were at university -- I still can't remember where -- and they were working for holiday money too. They were flush with cash at the end of a whole week of stewarding, and when our money ran out they were happy to buy drinks for giddy local girls who flicked their hair and sat on each other's laps and shrieked and joked and called them posh. They spoke a different language; they talked of gap years and summers spent in South America, and the backpacker trail in Thailand and who was going to try for an internship abroad. While we listened, and drank, I remember my sister stopping by the beer garden where we lay sprawled on the grass. She was wearing the world's oldest hoody and no make-up, and I'd forgotten I was meant to be meeting her. I told her to tell Mum and Dad I'd be back sometime after I was thirty. For some reason I found this hysterically funny. She had lifted her eyebrows, and stalked off like I was the most irritating person ever born.

It was about half an hour before I realized the other girls had gone.

When the Red Lion closed we all went and sat in the centre of the castle maze. Someone managed to scramble over the gates and, after much colliding and giggling, we all found our way to the middle and drank strong cider while someone passed around a joint. I remember staring up at the stars, feeling myself disappear into their infinite depths, as the ground gently swayed and lurched around me like the deck of a huge ship. Someone was playing a guitar, and I had a pair of pink satin high heels on which I kicked into the long grass and never went back for. I thought I probably ruled the universe.

My sister found me, there in the centre of the maze, sometime later, long after the stars had been obscured by the night clouds. As I said, she's pretty smart. Smarter than me, anyway.

She's the only person I ever knew who could find her way out of the maze safely.

"This will make you laugh. I've joined the library."

Will was over by his CD collection. He swivelled the chair round, and waited while I put his drink in his cup holder. "Really? What are you reading?"

"Ah."

"Put some music on for me, Clark?"

"You've never been to a concert?"

"I don't know anything about classical music. I mean, sometimes my dad accidentally tunes into Classic FM, but --"

"So don't read rubbish. Take the O'Connor stories home. Read them instead."

He told me, nodding at its rough location, and I flicked through until I found it.

"You were reading my Flannery O'Connor the other day." He took a sip of his drink. "When I was ill."

He looked genuinely shocked.

I was about to say no, and then I realized I didn't really know why I was refusing. "All right. I'll bring them back as soon as I've finished."

"What do you want?"

"I have a friend who plays lead violin in the Albert Symphonia. He called to say he's playing near here next week. This piece of music. Do you know it?"

"The short stories? I can't believe you noticed that."

"I couldn't help but notice. You left the book out on the side. I can't pick it up."

"No."

"Oh, nothing sensible. You wouldn't like it. Just boy-meets-girl stuff. But I'm enjoying it."

I laughed and shook my head. "I don't think so. My mum doesn't really go out. And it's not my cup of tea."

"Like films with subtitles weren't your cup of tea?"

"You should go. He's offered me tickets. This will be really good. Take your mother."

"You cut yourself off from all sorts of experiences because you tell yourself you are 'not that sort of person'."

Will gave me one of his looks -- the kind of looks that suggest I may actually have been locked up in somebody's cellar for several years.

"What?"

"What? Me?"

I frowned at him. "I'm not your project, Will. This isn't My Fair Lady."

"Well, I did go to see Westlife once. But I'm not sure if that counts. It was my sister's choice. Oh, and I was meant to go see Robbie Williams on my twenty-second birthday, but I got food poisoning."

"You're the most terrible snob, Clark."

I glared at him. It didn't work. I put the CD on. When I turned round he was still shaking his head.

"The play you're referring to. It's Pygmalion. My Fair Lady is just its bastard offspring."

"Pygmalion."

"But you won't go on your own."

"Why?"

"No."

"But, I'm not."

"Because I'd be uncomfortable. I feel like… I feel like they'd know."

"Not a chance."

"Go on. Open your mind."

"How do you know? You've done nothing, been nowhere. How do you have the faintest idea what kind of person you are?"

I stared at the CD cover. "I'll go if you come with me."

We looked at each other.

We sat in silence as the music started. Will's father was on the telephone in his hall, and the sound of muffled laughter carried through it into the annexe, as if from a long way away. The disabled entrance is over there, the woman at the racecourse had said. As if he were a different species.

"Clark, every single place I go to now people look at me like I don't belong."

"Everyone else would know, that I didn't belong."

"How do you think I feel?"

"Who? Know what?"

How could someone like him have the slightest clue what it felt like to be me? I felt almost cross with him for wilfully not getting it.

We sat there, while he digested this. "Jesus, you're a pain in the arse."

"So you keep telling me."

I made no plans this time. I expected nothing. I was just quietly hopeful that, after the racing debacle, Will was still prepared to leave the annexe. His friend, the violinist, sent us the promised free tickets, with an information leaflet on the venue attached. It was forty minutes' drive away. I did my homework, checked the location of the disabled parking, rang the venue beforehand to assess the best way to get Will's chair to his seat. They would seat us at the front, with me on a folding chair beside Will.

She even asked if I would like someone to meet us in the car park, to help us to our seats. Afraid that Will would feel too conspicuous, I thanked her and said no.

"It's actually the best place to be," the woman in the box office said, cheerfully. "You somehow get more of an impact when you're right in the pit near the orchestra. I've often been tempted to sit there myself."

As the evening approached, I don't know who grew more nervous about it, Will or me. I felt the failure of our last outing keenly, and Mrs Traynor didn't help, coming in and out of the annexe fourteen times to confirm where and when it would be taking place and what exactly we would be doing.

I realized he was looking for an excuse not to go. "I'll do it," I said. "If Will tells me what to do. I don't mind staying to help." I said it almost before I realized what I was agreeing to.

"And it's incredibly tedious," Will said.

Will's evening routine took some time, she said. She needed to ensure someone was there to help. Nathan had other plans. Mr Traynor was apparently out for the evening. "It's an hour and a half minimum," she said.

"I do not fall over at the sight of naked flesh."

"Clark, I've never seen anyone more uncomfortable with a human body than you. You act like it's something radioactive."

"Well, that's something for us both to look forward to," Will said grumpily, after his mother had left. "You get a good view of my backside, and I get a bed bath from someone who falls over at the sight of naked flesh."

"Let your mum do it, then," I snapped back.

And then there was the wardrobe problem. I didn't know what to wear.

"Yes, because that makes the whole idea of going out so much more attractive."

I had worn the wrong thing to the races. How could I be sure I wouldn't do so again? I asked Will what would be best, and he looked at me as if I were mad. "The lights will be down," he explained. "Nobody will be looking at you. They'll be focused on the music."

"You know nothing about women," I said.

"No," said Will, flatly.

I brought four different outfits to work with me in the end, hauling them all on to the bus in my Dad's ancient suit carrier. It was the only way I could convince myself to go at all.

Nathan arrived for the teatime shift at 5.30pm, and while he saw to Will I disappeared into the bathroom to get ready. First I put on what I thought of as my "artistic" outfit, a green smock dress with huge amber beads stitched into it. I imagined the kind of people who went to concerts might be quite arty and flamboyant. Will and Nathan both stared at me as I entered the living room.

"That looks like something my mum would wear," said Nathan.

"You never told me your mum was Nana Mouskouri," Will said.

The second outfit was a very severe black dress, cut on the bias and stitched with white collar and cuffs, which I had made myself. It looked, I thought, both chic and Parisian.

"Aw, mate, but you'd make a great maid," Nathan said, approvingly. "Feel free to wear that one in the daytime. Really."

I could hear them both chuckling as I disappeared back into the bathroom.

"You look like you're about to serve the ice creams," Will said.

"You'll be asking her to dust the skirting next."

"It is a bit dusty, now you mention it."

I discarded outfit number three -- a pair of yellow wide-legged trousers -- already anticipating Will's Rupert Bear references, and instead put on my fourth option, a vintage dress in dark-red satin. It was made for a more frugal generation and I always had to say a secret prayer that the zip would make it up past my waist, but it gave me the outline of a 1950s starlet, and it was a "results" dress, one of those outfits you couldn't help but feel good in. I put a silver bolero over my shoulders, tied a grey silk scarf around my neck, to cover up my cleavage, applied some matching lipstick, and then stepped into the living room.

"You," I said, "are both going to get Mr Muscle in your tea tomorrow."

"Ka-pow," said Nathan, admiringly.

"That's the one," he said. His voice was expressionless and oddly measured. And as I reached down to adjust my neckline, he said, "But lose the jacket."

He was right. I had known it wasn't quite right. I took it off, folded it carefully and laid it on the back of the chair.

Will's eyes travelled up and down my dress. It was only then that I realized he had changed into a shirt and suit jacket. Clean-shaven, and with his trimmed hair, he looked surprisingly handsome. I couldn't help but smile at the sight of him. It wasn't so much how he looked; it was the fact that he had made the effort.

"And the scarf."

"But I'm… well, I'm all cleavage otherwise."

My hand shot to my neck. "The scarf? Why?"

"It doesn't go. And you look like you're trying to hide something behind it."

"Only you, Will Traynor, could tell a woman how to wear a bloody dress."

"So?" he shrugged. "Look, Clark, if you're going to wear a dress like that you need to wear it with confidence. You need to fill it mentally as well as physically."

Here's the thing about middle-class people. They pretend not to look, but they do. They were too polite to actually stare. Instead, they did this weird thing of catching sight of Will in their field of vision and then determinedly not looking at him. Until he'd gone past, at which point their gaze would flicker towards him, even while they remained in conversation with someone else. They wouldn't talk about him, though. Because that would be rude.

But I took the scarf off.

Nathan went to pack Will's bag. I was working out what I could add about how patronizing he was, when I turned and saw that he was still looking at me.

"You look great, Clark," he said, quietly. "Really."

With ordinary people -- what Camilla Traynor would probably call "working-class" people -- I had observed a few basic routines, as far as Will was concerned. Most would stare. A few might smile sympathetically, express sympathy, or ask me in a kind of stage whisper what had happened. I was often tempted to respond, "Unfortunate falling-out with MI6," just to see their reaction, but I never did.

As we moved through the foyer of the Symphony Hall, where clusters of smart people stood with handbags and programmes in one hand, gin and tonics in the other, I saw this response pass through them in a gentle ripple which followed us to the stalls. I don't know if Will noticed it. Sometimes I thought the only way he could deal with it was to pretend he could see none of it.

We sat down, the only two people at the front in the centre block of seats. To our right there was another man in a wheelchair, chatting cheerfully to two women who flanked him. I watched them, hoping that Will would notice them too. But he stared ahead, his head dipped into his shoulders, as if he were trying to become invisible.

"No," he shook his head. He swallowed. "Actually, yes. Something's digging into my collar."

This isn't going to work, a little voice said.

"Do you need anything?" I whispered.

I leant over and ran my finger around the inside of it; a nylon tag had been left inside. I pulled at it, hoping to snap it, but it proved stubbornly resistant.

"New shirt. Is it really troubling you?"

"No. I just thought I'd bring it up for fun."

"Don't move," I said.

"I don't know, Clark. Believe it or not, I rarely pack it myself."

"Why --"

Before he could finish, I leant across, gently peeled his collar from the side of his neck, placed my mouth against it and took the offending tag between my front teeth. It took me a few seconds to bite through it, and I closed my eyes, trying to ignore the scent of clean male, the feel of his skin against mine, the incongruity of what I was doing. And then, finally, I felt it give. I pulled back my head and opened my eyes, triumphant, with the freed tag between my front teeth.

"Do we have any scissors in the bag?"

There were no scissors. I glanced behind me, where the audience were still settling themselves into their seats, murmuring and scanning their programmes. If Will couldn't relax and focus on the music, the outing would be wasted. I couldn't afford a second disaster.

"Got it!" I said, pulling the tag from my teeth and flicking it across the seats.

"Oh, come on, it's not as if they've never seen a girl nibbling a bloke's collar before."

"What?"

I seemed to have briefly silenced him. Will blinked a couple of times, made as if to shake his head. I noticed with amusement that his neck had coloured a deep red.

Will stared at me.

I swivelled in my chair to catch those audience members who suddenly seemed to find their programmes absolutely fascinating. Then I turned back to Will.

I straightened my skirt. "Anyway," I said, "I think we should both just be grateful that it wasn't in your trousers."

And then, before he could respond, the orchestra walked out in their dinner jackets and cocktail dresses and the audience hushed. I felt a little flutter of excitement despite myself. I placed my hands together on my lap, sat up in my seat. They began to tune up, and suddenly the auditorium was filled with a single sound -- the most alive, three-dimensional thing I had ever heard. It made the hairs on my skin stand up, my breath catch in my throat.

Will looked sideways at me, his face still carrying the mirth of the last few moments. Okay, his expression said. We're going to enjoy this.

And it made my imagination do unexpected things; as I sat there, I found myself thinking of things I hadn't thought of for years, old emotions washing over me, new thoughts and ideas being pulled from me as if my perception itself were being stretched out of shape. It was almost too much, but I didn't want it to stop. I wanted to sit there forever. I stole a look at Will. He was rapt, suddenly unselfconscious. I turned away, unexpectedly afraid to look at him. I was afraid of what he might be feeling, the depth of his loss, the extent of his fears. Will Traynor's life had been so far beyond the experiences of mine. Who was I to tell him how he should want to live it?

The conductor stepped up, tapped twice on the rostrum, and a great hush descended. I felt the stillness, the auditorium alive, expectant. Then he brought down his baton and suddenly everything was pure sound. I felt the music like a physical thing; it didn't just sit in my ears, it flowed through me, around me, made my senses vibrate. It made my skin prickle and my palms dampen. Will hadn't described any of it like this. I had thought I might be bored. It was the most beautiful thing I had ever heard.

We waited until the auditorium was empty, then I wheeled him out, down to the car park in the lift, and loaded Will up without incident. I didn't say much; my head was still ringing with the music, and I didn't want it to fade. I kept thinking back to it, the way that Will's friend had been so lost in what he was playing. I hadn't realized that music could unlock things in you, could transport you to somewhere even the composer hadn't predicted. It left an imprint in the air around you, as if you carried its remnants with you when you went. For some time, as we sat there in the audience, I had completely forgotten Will was even beside me.

Will's friend left a note asking us to go backstage and see him afterwards, but Will didn't want to. I urged him once, but I could see from the set of his jaw that he would not be budged. I couldn't blame him. I remembered how his former workmates had looked at him that day -- that mixture of pity, revulsion and, somewhere, deep relief that they themselves had somehow escaped this particular stroke of fate. I suspected there were only so many of those sorts of meetings he could stomach.

I looked into the rear-view mirror. Will was smiling.

"I especially didn't enjoy that bit near the end, the bit where the violin was singing by itself."

We pulled up outside the annexe. In front of us, just visible above the wall, the castle sat, floodlit under the full moon, gazing serenely down from its position on the top of the hill.

"So you're not a classical music person."

We sat in silence, gazing at the castle. Normally, at night, it was bathed in a kind of orange glow from the lights dotted around the fortress wall. But tonight, under a full moon, it seemed flooded in an ethereal blue.

I grinned back at him. "I really loved it," I said. "I'm not sure I'd like all classical music, but I thought that was amazing." I rubbed my nose. "Thank you. Thank you for taking me."

"I didn't enjoy that in the slightest."

"What kind of music would they have played there, do you think?" I said. "They must have listened to something."

"I could tell."

"I could see you didn't like that bit. In fact, I think you had tears in your eyes you hated it so much."

"I don't want to go in just yet. I just want to sit and not have to think about…" He swallowed.

"Nah. I don't really go to the castle."

My answer was non-committal. We sat there a moment longer, listening to the engine tick its way to silence.

"Just hold on. Just for a minute."

Even in the half-dark it seemed effortful.

"The castle? Medieval stuff. Lutes, strings. Not my cup of tea, but I've got some I can lend you, if you like. You should walk around the castle with it on earphones, if you really wanted the full experience."

"Right," I said, unfastening my belt. "We'd better get you in. The evening routine awaits."

"Just wait a minute, Clark."

"I'm fine. I just…"

"Are you all right?" I found my gaze dropping towards his chair, afraid some part of him was pinched, or trapped, that I had got something wrong.

I could see his pale collar, his dark suit jacket a contrast against it.

"It's always the way, when you live close by somewhere."

I turned in my seat. Will's face was in shadow and I couldn't quite make it out.

My sister and I never really talked about what happened that night at the maze. I'm not entirely sure we had the words. She held me for a bit, then spent some time helping me find my clothes, and then searched in vain in the long grass for my shoes until I told her that it really didn't matter. I wouldn't have worn them again, anyway. And then we walked home slowly -- me in my bare feet, her with her arm linked through mine, even though we hadn't walked like that since she was in her first year at school and Mum had insisted I never let her go.

"Sure."

"I just… want to be a man who has been to a concert with a girl in a red dress. Just for a few minutes more."

I closed my eyes and lay my head against the headrest, and we sat there together for a while longer, two people lost in remembered music, half hidden in the shadow of a castle on a moonlit hill.

I released the door handle.

When we got home, we stood on the porch and she wiped at my hair and then at my eyes with a damp tissue, and then we unlocked the front door and walked in as if nothing had happened.

Dad was still up, watching some football match. "You girls are a bit late," he called out. "I know it's a Friday, but still…"

I chopped all my hair off the following week. I cancelled my plane ticket. I didn't go out with the girls from my old school again. Mum was too sunk in her own grief to notice, and Dad put any change in mood in our house, and my new habit of locking myself in my bedroom, down to "women's problems". I had worked out who I was, and it was someone very different from the giggling girl who got drunk with strangers. It was someone who wore nothing that could be construed as suggestive. Clothes that would not appeal to the kind of men who went to the Red Lion, anyway.

Back then, I had the room that is now Granddad's I walked swiftly upstairs and, before my sister could say a word, I closed the door behind me.

Life returned to normal. I took a job at the hairdresser's then The Buttered Bun and put it all behind me.

I must have walked past the castle five thousand times since that day.

But I have never been to the maze since.

"Okay, Dad," we called out, in unison.