The hammer rang once. A spark jumped off the anvil and did not go out. It waited. They followed.

The Green Gazette came out on the first Friday of every month. It was eight pages long, printed on paper that came off on your fingers, and it was made entirely by volunteers at the back table of the Whetstone café. Six hundred copies went through six hundred doors on and around the Green. Most of them, people said, ended up under a cat's water bowl or in the recycling. But people read them first. In a place without much else to read about itself, the Gazette was how the Green knew what the Green was doing.

Tara had been writing for it since September. She had started with the lost-and-found column, moved on to the school concert, and in October she had been given her first front page.

The council wanted to put a pedestrian crossing on Mill Lane, outside the primary school, where the road bent and the cars came round too fast. Some people wanted it badly. Some people did not want it at all, because it would mean traffic lights, and traffic lights would mean queues, and queues on Mill Lane would back up all the way to the bridge. There had been a meeting. There had been a petition. There had been a flyer.

Tara had worked hard on the story. She had talked to two parents, one bus driver and a lollipop lady. She had quoted both sides fairly. And in the third paragraph, in a sentence she had been rather proud of, she had written that the crossing would cost the council two hundred and forty thousand pounds.

Mrs Hallam, who edited the Gazette and had done for eleven years, had liked the story. It had gone on page one under the headline CROSSING ROW: £240,000 PLAN SPLITS THE GREEN.

On Saturday morning, the day after six hundred copies had gone through six hundred doors, a letter arrived at the café. It was handwritten, in capital letters, and it was from Mr Pettit, who lived on Mill Lane and had been a civil engineer for forty years.

YOUR FIGURE IS WRONG BY A FACTOR OF TEN, it began. I HAVE READ THE MINUTES. HAVE YOU?

Tara read it three times. Her face went hot. Her stomach went cold. Both at once, which she had not known was possible.

The Gazette had a website as well as a paper. It was a simple thing, built by a retired teacher, and the front-page story was on it with the same headline and the same number.

Sitting at the back table with Mr Pettit's letter in front of her, Tara saw at once what she could do. She could log in and change the number. She would not need to make a fuss. The website would be right by lunchtime. The paper copies were already under cats' bowls. By next month nobody would remember a number in the third paragraph of a story about a crossing.

It would be so easy. Nobody would have to know that she, Tara, who checked everything, who listened longest, had got something wrong in front of six hundred households.

She had her laptop open and the login page up when Attest sat down opposite her.

Attest's real name was Adesuwa. She subbed the Gazette's copy, which meant she read every word before it went to print and went through it with a pencil. She had a habit, which some volunteers found tiresome, of drawing a little circle round any number that did not have a name next to it. She looked at Tara's screen, then at the letter, then back at the screen.

"You're going to change it quietly," said Attest. It was not a question.

"It's the website," said Tara. "It's quicker. I'll fix it and nobody gets confused."

"Who says so, though?" said Attest. "Where did that number come from in the first place?"

Tara opened her mouth and closed it again.

"Because if you change it with no note," said Attest, "everyone who read the first number will see a different one and wonder who changed it, and why. The people against the crossing will say we were got at by the council. The people for it will say we made it up. A correction names its source too. Otherwise it's just another number with no name next to it."

Tara closed the laptop.

Attest took Tara's notebook, the one she had used for the story, and turned to the page with the figure on it. In Tara's neat handwriting it said: Crossing, £240,000. There was nothing beside it.

Attest drew a small circle round it with her pencil.

"Where's it from?"

Tara thought back. She had been at the kitchen table, writing the story on a Sunday night, and she had needed the cost. She had remembered the flyer. It had come through the door a week before, bright yellow, from a group called Keep Mill Lane Moving. It had a picture of a traffic queue on it, and across the top in large letters: £240,000 OF YOUR MONEY. She had copied the number into her notebook from the flyer, meaning to check it, and then the story had been due and she had not.

"From a flyer," she said. "Keep Mill Lane Moving."

"So the source of our front-page number," said Attest slowly, "is a leaflet from one side of the argument we were reporting on."

"I meant to check it."

"Everyone means to check it." Attest did not say it unkindly. "Put a name next to it now, then. Write down where the number came from."

Danya, who was twelve and Tara's neighbour, had come in for a hot chocolate and was sitting at the next table pretending to do his homework. He looked over.

"Is the flyer wrong?" he asked.

"We don't know yet," said Attest. "We only know who said it. That's the first step, not the last one."

Tara wrote source: Keep Mill Lane Moving flyer beside the number, and the circle round it looked less like an accusation and more like a question.

Deed arrived at eleven, as she always did on Saturdays, with a carrot cake and her phone.

Deed's real name was Dina, and she was the only person on the Gazette, perhaps the only person on the Green, who read the council minutes for pleasure. She kept them as PDFs on her phone, sorted by month, and she could find a decision about bin collections from three years ago faster than most people could find their keys.

Tara showed her the letter and the circled number.

"Go to the original document," said Deed at once. "Not the flyer. The minutes."

She was already scrolling. "Highways and Transport Committee, the fourteenth of September. Here. Page four, item seven." She turned the phone round so that Tara and Attest could see.

Mill Lane pedestrian crossing (signalised). Estimated capital cost: £24,000. Annual maintenance estimated at £1,200. Approved for consultation.

"Twenty-four thousand," said Tara.

"Twenty-four thousand to build," said Deed. "There's no two hundred and forty anywhere in this document. I've searched it."

Tara stared at the number. She did the sum in her head, and then on the back of Mr Pettit's letter, because she wanted to see it written down. Two hundred and forty thousand divided by twenty-four thousand. Ten. The figure on her front page was ten times the real one.

"How did they get it wrong?" said Danya, who had given up pretending to do his homework.

Deed shrugged. "A summary of a summary drifts. Maybe someone read the line wrong. Maybe someone added a zero by accident and then everyone copied the person who'd added it. The flyer probably copied something too. Read it where it was first written down, and you don't have to guess."

"So the flyer people weren't lying?" said Danya.

"Probably not," said Deed. "They believed their own number. That's what makes a wrong number so sticky. Everyone who passes it on believes it."

Tara thought about the people who had written the flyer. They had been worried about queues on Mill Lane, and they had found a number that seemed to prove their worry was right. She had been worried about getting the story in on time, and she had found the same number. Neither of them had gone to page four, item seven.

Widen came in at half past eleven, which was when she always came in, to do the Gazette's puzzle page. Her real name was Wendy, and she kept a small notebook in which she wrote down what things cost. Buses, bridges, school dinners, the new roof on the library. She said it was because numbers on their own made her nervous.

She listened to the whole story, looked at the minutes, and then asked the question Tara had not thought to ask.

"Compared with what, though? Is twenty-four thousand a lot, or does it just sound like a lot?"

"It's a lot of money," said Danya.

"For you or me, yes," said Widen. "For a council? Widen the view." She flicked through her notebook. "The ward's roads budget for this year. I wrote it down when it was in the Gazette in March. Three hundred and ten thousand."

She did the division on her phone and held it up. "So the crossing is about eight per cent of one year's roads money. One number on its own tells you almost nothing. Put it next to the whole budget and you can see what it means."

Tara worked out the other one. Two hundred and forty thousand out of three hundred and ten thousand was more than three quarters.

"So our story," she said slowly, "told everyone on the Green that one crossing would take nearly all the money for every road in the ward for a year."

"That's what a reader would feel," said Widen. "Even if they never did the sum."

Tara thought of the queue picture on the yellow flyer. She thought of six hundred doormats. She thought of the conversations at bus stops and school gates, people saying two hundred and forty thousand, for a set of lights, and she understood that her mistake was not one wrong number in a third paragraph. It was a feeling she had put into a whole neighbourhood's heads.

Mrs Hallam came in at noon, read Mr Pettit's letter, looked at the minutes on Deed's phone, and sat down very heavily.

"Oh dear," she said. "Oh dear, oh dear."

Then she said what she had clearly been worrying about for eleven years.

"If we put a correction on the front page," said Mrs Hallam, "people will think we get everything wrong. You don't know what it's like. Every month someone writes to say we're biased one way or the other. The council thinks we're against them. Keep Mill Lane Moving thinks we're for the council. We're eight volunteers with no money and no lawyer. If we print a box on page one saying we got this wrong, every person who has ever been cross with us will hold it up and say you see?"

It was a good argument. Tara could feel how good it was. Mrs Hallam had kept the Gazette going through two recessions, a flood and a printer that caught fire, and she had done it by not giving people reasons to stop reading.

There was a second letter in the café's post tray, Tara saw now. It was from a councillor, Mr Okafor, politely pointing out that the figure had been raised three times at his surgery that week and asking whether the Gazette would correct it in a manner as prominent as the original error. There was a text message on Mrs Hallam's phone from a woman at Keep Mill Lane Moving, saying that the exact figure was not really the point and the Gazette should just move on.

Everyone was partly right. Mr Pettit was right that the number was wrong, and right to be cross. Mr Okafor was right that a correction tucked away on page seven would not undo a headline on page one. The woman from Keep Mill Lane Moving was right that the argument about queues was real whatever the cost. And Mrs Hallam was right that a small, poor, volunteer paper had to look after the trust it had.

"So what do we do?" said Mrs Hallam, to nobody in particular.

Attest looked at Deed. Deed looked at Widen. Widen looked at Tara. Danya, at the next table, had stopped drinking his hot chocolate.

Mrs Hallam followed their eyes.

"It was your story," she said to Tara. It was not an accusation. "You found out what went wrong, and you know where it came from. So you write it. Where it goes, and what it says, and how it starts." She took a pen out of her cardigan pocket and held it out. "There's a box on page one of the November issue, and it's empty."

Tara took the pen.

She thought of the yellow flyer and the circled number. She thought of page four, item seven, and the zero that should never have been there. She thought of eight per cent and three quarters. She thought of six hundred doormats, and of the website she had nearly changed in secret, and of how small and safe that would have felt, and how wrong.

She pulled the notebook towards her and turned to a clean page.

 

 

(Write the first line of Tara's correction.)

 

The spark dimmed to a warm dot and settled back on the anvil. The Green was just the Green again.

Back on the Green

On Sunday the children on the Green kept score for a game of rounders on the chalk board by the swings. At the end, Danya noticed that the board said 14 to 9 when it had really been 12 to 9, because somebody had counted one run twice.

He did not rub the 14 out. He drew a line through it, wrote 12 beside it, and underneath, in smaller letters: we counted Jamie's run twice, sorry. Nobody argued about the score after that.

Afterword. The idea in this case is the open correction. When a newspaper gets something wrong, the honest fix says three things in public: what was wrong, what is right, and where the mistake came from. Many papers keep corrections in a fixed place, and online articles often carry a note at the top saying what was changed and when. A quiet edit, changing the words with no note, can feel kinder, but it leaves everyone who read the first version holding a fact that has silently disappeared. The case also turns on two checking habits: go to the original document rather than a copy of a copy, and put any number next to something it can be compared with. You can practise naming sources, reading the original and widening the view in NewsForge.