A Note Beneath Seat G Twelve

Every auditorium has one seat that nobody wants. In the old auditorium of my new novel, it is G Twelve: back of the centre block, right arm scraped to the colour of a faded peach, a spring that catches halfway so that whoever sits there has to hold the cushion down with the backs of their knees. Leni Arlow has been sent to measure it for an inventory. She draws it three times instead, each time with a little more care, and she would rather nobody noticed.

Then the cushion snaps upward, and a small triangle of cream paper slides out from underneath.

If someone comes to the last performance alone, please leave a place beside you. You do not have to tell them why.

That note is where One Last Seat Beside You began for me, long before I knew who would find it. I kept thinking about how a crowd can move around a person without ever touching them, and how the smallest kindness, a chair pulled out, a place left clear, can matter more than anything said aloud. I wanted to write a love story built out of those gestures. Nobody rescues anybody here. Two people simply start paying attention.

The two people are Leni and Jude Merrin. They are in their final school year, and they have worked near each other for a whole year without ever quite talking. Leni builds whole worlds from cardboard and paint while insisting she is only helping. She has a habit of counting every way she might disappoint people before she lets herself say yes to anything. Jude runs the lights from the booth at the back, turns up early to make sure every lamp works, and acts as though he is never serious until something he loves is at risk. He can hear a wrong note from the far end of the room. He can also, it turns out, see a girl in the back row who thought she was hidden.

I loved writing the way they talk. Jude teases. Leni teases back, and then catches herself. Underneath almost every joke is something neither of them is ready to say, and the pleasure for me was letting the reader hear it a little before they do. When the cushion first throws out its secret, Jude says it is either very sweet or the first instruction in a complicated haunting. It is not a haunting. But there is more than one note, and each carries the private hope of someone who once felt alone.

What Leni and Jude decide to do about those notes is the heart of the book. They do not turn them into a school mystery, and they do not post a single photograph. Their friend Ari, who can tell Leni she is being stubborn without turning it into a fight, lays down the rules almost at once: if they answer a request, they do it because they can, not because they want to be thanked. So they answer quietly, one request at a time, while the auditorium is prepared for its very last performance, an evening about leaving that the senior students must invent for themselves.

The room itself mattered enormously to me. Plain folding seats in deep red rows. A shallow stage. A backdrop with a tear in it that becomes, in Leni's hands, a doorway rather than a sky, because people can choose whether to walk through a door. A work lamp left burning in the booth after everyone has gone home. All of it is due to be stripped out and remade when the term ends, and so the place the two of them are learning to share is already counting down.

So is the year. There is a single coveted place in a summer arts programme, and it appears to belong to one of them. Both Leni and Jude are tempted to solve that problem the way kind, frightened people often do, by quietly giving up what they want. I find that temptation very human and very dangerous, and the book spends a good deal of its time asking where generosity ends and deciding someone else's future begins.

There is a younger sister too, Nessa, who builds tiny cardboard rooms of her own and would like the older people around her to stop deciding what she can handle. And there is Ms. Rowan, who believes a school performance belongs to its students even when that makes the last week hard. I am fond of them both.

If you have ever arrived somewhere alone and hoped, without saying so, that someone might move their coat from the seat beside them, this story is for you. It is tender and, I hope, often funny, and it believes that the best promises are the ones that make it possible for people to go.

The lights are on in the old auditorium, and G Twelve is waiting with its scuffed arm and its stubborn spring. Come and take the seat beside it in One Last Seat Beside You.