The Lost and Found

The first time Cass saw a Keeper, it was sitting in the lost-and-found box at school, on top of a single unclaimed mitten, and no one else could see it at all.

Cass checked the lost-and-found box most mornings. He couldn't have said why, exactly. He just didn't like the thought of a thing sitting in a box with nobody coming for it. Other kids got to school and went straight to their friends, or their phones, or the vending machine that ate your money one time in three. Cass lifted the lid of the battered cardboard box by the office and had a look at what the week had lost. A single glove. A water bottle with a faded name on the side. A hair clip shaped like a strawberry. Nobody's, now. All of it just waiting to be given up on.

He never took anything. That wasn't the point. The point was that somebody should know the things were there. So Cass looked, every morning, the way you'd nod to a person sitting alone on a bench, and then he closed the lid and went to class.

This morning, when he lifted the lid, a small green creature was sitting on the red mitten, watching him with its eyes shut.

It was smaller than a kitten, the green of the last hour before rain. Scales like overlapping leaves, a blunt snout, and two shut eyes that Cass somehow knew were the colour of held water. It was curled around something he couldn't quite look at directly, the way you can't look straight at a word on the tip of your tongue.

Down the corridor, Deni Okafor was telling three people at once about a football match and noticing, as he always did, absolutely everything: Miss Attah's new glasses, the fire door propped with the wrong brick, Priya's haircut. He looked straight at the open box, straight at the small green creature in it, and his eyes slid across it like water across glass, and he kept talking about the football.

So the creature wasn't hidden. It was Cass's to see.

"Are you going to just stand there breathing at me," it said, without opening its eyes, "or are you going to be useful?"

Cass didn't scream. A more sensible boy might have. But he'd never been a screamer, and today he was too tired to start. He'd come to school hollow and stinging behind the eyes, holding on to something the whole way here, and losing it.

The reason went back to a different box, one at home, and to a man in a photograph.

In the bottom drawer of Cass's desk there was a box he'd never shown anyone. Three things lived in it: a bus ticket from a town he'd never go back to, a white chess knight with a chipped ear, and a photograph, curling at one corner, of a man laughing at something just outside the frame.

His mum had found it once, putting away his socks, and smiled and called it his box of nothings, and offered, kindly, to help him clear it out. His mum was the kindest person Cass knew. That was the whole trouble.

Because a few weeks ago, at breakfast, Cass had done a reckless thing. He'd carried the photograph downstairs and put it on the table between the toast and the marmalade. "Mum," he'd said, as lightly as he could manage. "Who's this?"

She'd picked it up and looked at it, and her face had done a thing Cass would spend a long time trying to forget. It went politely blank, the way your face goes when a stranger shows you a photo of their holiday. "I don't know, love," she said. "One of your projects?" And she set it down again, gently, face up, next to the marmalade, and asked if he wanted the last of the tea.

The man in the photograph was her father.

Cass was eleven years old, and as far as he'd ever been able to work out, he was the only person left in the world who knew his grandfather had ever existed.

He remembered him. That was the thing. He remembered all of him. He remembered that Grandad smelled of cold air and pear drops, that he sat in the good chair by the window with his feet up on a stool that was not for feet, that he cheated, gently and constantly, at every board game ever invented and denied it with such wounded dignity that you ended up apologising to him. He called Cass captain. He could whistle two notes at once. He had a way of looking into the empty corners of a room as if they weren't quite as empty as everyone else believed.

Someone has to hold on, captain, he used to say, mostly when he thought Cass wasn't listening. Not everyone can see what's slipping.

Cass hadn't understood that then. He was beginning to.

Because after Grandad went (and it wasn't dying; dying has a shape, a grave, people in dark coats, and this had none of those), the world set about tidying him away. His mum forgot first. Cass had never forgiven her for it, and didn't think he ever would. Then the neighbours, who used to wave. Then the photographs going up the stairs. There had been five, in frames, and Cass could have named every one: the seaside, the allotment, the one where Grandad held baby Cass upside down and both of them were delighted about it. Then one grey morning Cass came down the stairs and they were photographs of the wall. Just wall. Five clean rectangles of brighter paint where the frames had hung, his mum walking past them without a flicker, and no memory in a single head that there had ever been frames at all.

Cass had come to think of it as a tide. It was the only word that fit: a thing that came in slow and certain whether you wanted it or not, and took whatever wasn't held down, and left everything behind it smooth and blank. It had taken Grandad almost to the waterline. Cass was the last thing above it, still holding on.

So he kept him. It was the only thing he could do. He kept the ticket and the chipped knight and the one photograph the tide had somehow missed, and every night, before he let himself sleep, he said his grandfather's name into the dark of his room. Once. Out loud. So that somewhere in the whole indifferent world it would still, for one more day, be true.

And this morning, it had gone wrong.

He'd woken before his alarm, the way you do when something's already wrong and you don't yet know what. He'd lain in the grey light and reached for his grandfather, the way he did every morning. Not the photograph. The real thing. The sound of his voice saying captain. The exact weight of it.

And it was thin.

Not gone. Cass would have known gone. This was worse. It was going, right there under his hands, thinning and slipping the way a thread slips when whoever held the other end has let go. He'd sat bolt upright with his heart slamming and grabbed for it and held on with everything he had, and felt it slide away anyway, because he was the only one left holding it.

He'd got dressed. He'd eaten nothing. He'd walked to school with his fists jammed in his pockets and his eyes streaming in a way he told himself was the cold. And somewhere between the bus stop and the gate, the ordinary grey morning had gone strange at its edges. Bright, and wrong, and thin at the corners.

And then he'd checked the lost-and-found box, because he always checked the lost-and-found box. And there was a small green creature in it, asking him to be useful.

"Useful how," said Cass. It came out rough, and he didn't care.

The creature opened its eyes.

Cass had expected animal eyes, the flat bright buttons of a lizard. They weren't. Looking into them was like looking down a well on a clear night and finding, with no warning, stars. The little green body was only the near end of something. It went back, and back, past the corridor and the school and the town, past the winter his grandfather started to go, down into a dark, still water where the lost things lay safe and kept and unforgotten. For half a breath Cass felt the whole size of it, the way you feel the size of the sea in the dark. He was suddenly, fiercely glad he hadn't screamed. It would have been like screaming in a cathedral.

Then the creature blinked, and it was only a tired little thing on a mitten again.

"Ah," it said, and its voice had changed. "You really can see. Properly, I mean." A pause. "That is not good."

"You asked me to be useful," said Cass.

"I asked on the off chance. One asks. One does not expect." It uncurled a little. Cass saw that the thing it was holding, the keeping of the mitten, had gone thin and worn and faintly grey, like the corner of an old photograph left too long in a window. "This one is nearly gone. I have held it since Tuesday, and it is nearly gone anyway. Do you know why?"

Cass shook his head.

"Because a keeping has two ends, like a thread pulled tight between two hands. I hold this end. The person who loved the thing holds the other, even when they've long forgotten they're holding anything at all. While the two of us pull, the thread stays taut, and the memory with it." Its voice dropped. "But somewhere a child loved a red mitten, and that child has stopped. Stopped thinking of it. Let their end go. And a thread held from one side does not stay tight for long. It slips, however hard the other one pulls."

Cass had gone very cold, and it had nothing to do with the corridor.

He was thinking of his mum saying one of your projects, love, and setting down her own father without once feeling the weight leave her hands.

"Then why hold on," he said. It wasn't a cruel question. He needed the answer more than he'd ever needed anything.

The creature was quiet a moment. "Because it is mine to hold. Because I said that I would. Those were reasons enough, once. They used to be reasons enough for anyone."

And Cass, who said a dead man's name into the dark every night for an audience of no one, understood that completely.

"It isn't only the mitten, is it," he said slowly. He couldn't have said how he knew; he was already getting used to knowing things he had no business knowing. "It's happening everywhere. People are —" he stopped. The true word was too big to say in a corridor that smelled of floor polish and somebody's forgotten banana. "People are going. And nobody's noticing."

The creature went absolutely still. "What," it said, "did you say your name was."

"I didn't."

"No. You didn't. That was well done, though you don't yet know why." It rose onto small clawed feet that managed, against everything, to be dignified, and looked past him, through the tall windows to the grey morning, where fog was coming up off the playing fields the way fog does. Ordinary. Slow.

Except it wasn't coming up off the fields. It was coming in. From the edges. A pale, bright, restless tide with no water in it, sliding across the grass toward the school, and where it touched the far goalposts it took their colour clean away, so they stood pale and washed, like something drawn in pencil and rubbed half out. On the near pitch a PE class ran shuttle runs. Not one of the thirty kids looked up, because not one of them could see the sea they were running in.

"Boy," said the creature, and its tired voice went quiet and serious, which was far worse than shouting. "I think you had better pick me up. And I think you had better not tell a single soul what you can do. Not yet."

"Why not?"

"Because you can stand there and watch that tide come in, and there is only one kind of person left who can do that. It is the same thing in you that let you keep a man your own mother set down and forgot. It is a rare thing, and a dangerous one." Its eyes held his. "And the last of your kind has been waiting a very long time to be found."

Out on the field, gently, in broad daylight, the world went on forgetting.

Cass picked the creature up.