And on the subject of summer lawns: despite the fact that the books looked old, the air in the library felt fresh. It had a lush, grassy, outdoors kind of smell, not the dusty scent of old tomes.

The shelves really did seem to go on for ever, straight and long towards a far-off horizon, like lines indicating one-point perspective in a school art project, broken only by the occasional corridor.

She picked a corridor at random and set off. At the next turn, she took a left and became a little lost. She searched for a way out, but there was no sign of an exit. She attempted to retrace her steps towards the entrance, but it was impossible.

Eventually she had to conclude she wasn’t going to find the exit.

‘This is abnormal,’ she said to herself, to find comfort in the sound of her own voice. ‘Definitely abnormal.’

Nora stopped and stepped closer to some of the books.

There were no titles or author names adorning the spines. Aside from the difference of shade, the only other variation was size: the books were of similar height but varied in width. Some had spines two inches wide, others significantly less. One or two weren’t much more than pamphlets.

She reached to pull out one of the books, choosing a medium-sized one in a slightly drab olive colour. It looked a bit dusty and worn.

Before she had pulled it clean from the shelf, she heard a voice behind her and she jumped back.

‘Be careful,’ the voice said.

And Nora turned around to see who was there.

The Librarian

‘Please. You have to be careful.’

The woman had arrived seemingly from nowhere. Smartly dressed, with short grey hair and a turtle-green polo neck jumper. About sixty, if Nora had to pin it down.

‘Who are you?’

But before she had finished the question, she realised she already knew the answer.

‘I’m the librarian,’ the woman said, coyly. ‘That is who.’

Her face was one of kind but stern wisdom. She had the same neat cropped grey hair she’d always had, with a face that looked precisely as it always did in Nora’s mind.

For there, right in front of her, was her old school librarian.

‘Mrs Elm.’

Mrs Elm smiled, thinly. ‘Perhaps.’

Nora remembered those rainy afternoons, playing chess.

She remembered the day her father died, when Mrs Elm gently broke the news to her in the library. Her father had died suddenly of a heart attack while on the rugby field of the boys’ boarding school where he taught. She was numb for about half an hour, and had stared blankly at the unfinished game of chess. The reality was simply too big to absorb at first, but then it had hit her hard and sideways, taking her off the track she’d known. She had hugged Mrs Elm so close, crying into her polo neck until her face was raw from the fusion of tears and acrylic.

Mrs Elm had held her, stroking and smoothing the back of her head like a baby, not offering platitudes or false comforts or anything other than concern. She remembered Mrs Elm’s voice telling her at the time: ‘Things will get better, Nora. It’s going to be all right.’

It was over an hour before Nora’s mother came to pick her up, her brother stoned and numb in the backseat. And Nora had sat in the front next to her mute, trembling mother, saying that she loved her, but hearing nothing back.

‘What is this place? Where am I?’

Mrs Elm smiled a very formal kind of smile. ‘A library, of course.’

‘It’s not the school library. And there’s no exit. Am I dead? Is this the afterlife?’

‘Not exactly,’ said Mrs Elm.

‘I don’t understand.’

‘Then let me explain.’

The Midnight Library

As she spoke, Mrs Elm’s eyes came alive, twinkling like puddles in moonlight.

‘Between life and death there is a library,’ she said. ‘And within that library, the shelves go on for ever. Every book provides a chance to try another life you could have lived. To see how things would be different if you had made other choices . . . Would you have done anything different, if you had the chance to undo your regrets?’

‘So, I am dead?’ Nora asked.

Mrs Elm shook her head. ‘No. Listen carefully. Between life and death.’ She gestured vaguely along the aisle, towards the distance. ‘Death is outside.’

‘Well, I should go there. Because I want to die.’ Nora began walking.

But Mrs Elm shook her head. ‘That isn’t how death works.’

‘Why not?’

‘You don’t go to death. Death comes to you.’

Even death was something Nora couldn’t do properly, it seemed.

It was a familiar feeling. This feeling of being incomplete in just about every sense. An unfinished jigsaw of a human. Incomplete living and incomplete dying.

‘So why am I not dead? Why has death not come to me? I gave it an open invitation. I’d wanted to die. But here I am, still existing. I am still aware of things.’

‘Well, if it’s any comfort, you are very possibly about to die. People who pass by the library usually don’t stay long, one way or the other.’

When she thought about it – and increasingly she had been thinking about it – Nora was only able to think of herself in terms of the things she wasn’t. The things she hadn’t been able to become. And there really were quite a lot of things she hadn’t become. The regrets which were on permanent repeat in her mind. I haven’t become an Olympic swimmer. I haven’t become a glaciologist. I haven’t become Dan’s wife. I haven’t become a mother. I haven’t become the lead singer of The Labyrinths. I haven’t managed to become a truly good or truly happy person. I haven’t managed to look after Voltaire. And now, last of all, she hadn’t even managed to become dead. It was pathetic really, the amount of possibilities she had squandered.