Linda turned round, and Issy enjoyed her astonishment.

‘Oh how lovely,’ Linda said. ‘Do you do bacon sandwiches?’

‘Nooo,’ said Issy, making a mental note that, if the business ever took off, they must look into serving up bloody bacon sandwiches if everyone wanted them so much. ‘We do coffee and cake.’

‘Like your hobby?’ said Linda.

Issy bit her lip. She didn’t like her baking being referred to as a ‘hobby’, especially not now.

‘Well, they do say follow your passion,’ she said, smiling through gritted teeth. ‘Here! Have a cake. And a flyer.’

‘I will,’ said Linda. ‘Oh, Issy, I’m so pleased for you! And what about that nice young man of yours with the fancy car?’

‘Hmm,’ said Issy.

‘Oh well, soon you’ll be able to give up your hobby, and you’ll be down in haberdashery to pick out some voile for your veil.’

‘Please pop in for a coffee some time,’ said Issy, trying to keep the smile on her face. ‘Would be lovely to see you.’

‘Well, yes, of course. For as long as you’re there,’ said Linda. ‘It’s great to have a hobby.’

Issy managed not to roll her eyes but headed up the line, and as the bus arrived even the young man who never took his iPod out grabbed a cake and made a cheers at her. She popped her head inside the bus and offered a cake to the driver but he fiercely shook his head and Issy withdrew, slightly flattened.

Well, she said to herself. We’ve got to start somewhere.

Issy bit into a frankly heavenly cappuccino cake, where she’d whipped the icing so fine it was practically foam. It was exquisite. Or just a cake, she supposed.

Hobby my bum, she said crossly to herself. She returned slowly to the shop, just in time to see two schoolkids charging out, each clutching two cakes in grubby paws.

‘Get out of it, you little bastards!’ she screamed, relieved at least that she had locked the till.

The man from the ironmonger’s walked past, looking at her strangely.

‘Hello!’ said Issy, trying to get back her normal voice. He stopped.

‘Hello,’ he said. He had a slight accent Issy couldn’t place.

‘We’re the new shop,’ said Issy, somewhat redundantly. ‘Would you like a cake?’

He was dressed fastidiously, she noticed, suit, a narrow tie, a topcoat, a scarf and even a homburg. The effect was very old-fashioned. She’d have expected him to be in brown overalls, if anything.

He bowed his head over her cake tin and selected the most perfect of the cappuccino cakes, picking it up daintily between two fingers.

‘I’m Issy,’ she offered when he’d made his choice.

‘Delighted,’ said the man, and headed on back towards his shop, which, as always, had the shutters tightly closed. Peculiar.

‘I am undaunted,’ vowed Issy, even as Pearl returned from dropping off Louis, uncharacteristically bowed. She still had more than half the cakes in the tin. ‘Joshua isn’t allowed sugar,’ she reported, ‘and Tabitha has food intolerances. And Olly’s mother wanted to know that the flour was fair trade.’

‘Everything’s fair trade,’ said Issy, exasperated.

‘I told her that, but she said she was going to say no just to be on the safe side,’ said Pearl dully.

‘Never mind,’ said Issy. ‘We soldier on!’

The following morning Issy headed up to Stoke Newington High Street, aiming to leave flyers and free samples in every shop. This wasn’t as easy as it sounded. Every little shop already had every spare centimetre of space taken up with flyers for yoga classes, baby gyms and massage, circus school, jazz concerts, tango lessons, home delivery organic vegetables, knitting circles, library events, local theatre shows and nature walks. The world seemed papered in flyers, thought Issy, and Zac’s beautiful, elegant designs seemed suddenly limp and colourless going up against neon oranges and bright yellows. The people in the little shops seemed listless and uninterested, although they accepted the cakes of course. Issy took the opportunity to study them. These were people, like her, who’d had a dream of running their own business and had gone for it. She wished they looked a little less exhausted and unhappy.

About a third of the way down the street an angry-looking woman in a tie-dye T-shirt with messy hair came storming up to her with a bumptious look on her face.

‘What are you doing?’ she demanded peremptorily.

‘I’m handing out samples for my new café,’ said Issy bravely, proffering the tin. ‘Would you like one?’

The woman made a face. ‘Full of refined sugar and trans-fats, designed to turn us into obese TV slaves? Not bloody likely.’

Issy had encountered lack of interest, but this was the first open hostility she’d faced over the café, she realized.

‘OK, never mind,’ she said, replacing the lid.

‘But you can’t just go handing stuff out,’ said the woman. ‘There’s other cafés on this street! We’ve been here a lot longer than you, so you just have to butt out of our way.’

Issy turned round, and sure enough, at the doors of several coffee houses and tea shops people were standing and watching, their eyes hostile.

‘And we’re a co-operative,’ said the woman. ‘We all work together in partnership. Everything is wholesome and everything is fair trade. We’re not poisoning children. And that’s what the community wants around here. So you can just back off.’

Issy felt herself shaking with upset and rage. Who was this horrible bloody woman with her horrible long grey greasy hair and ugly spectacles and hideous T-shirt?

‘I think there’s room for everyone,’ she managed, her voice shaking.

‘Well there’s not,’ said the woman, who’d obviously spent a lifetime standing up and shouting at gatherings and, as far as Issy could tell, was thoroughly enjoying this. ‘We were here first. We’re helping communities in Africa, you’re not doing anyone the least bit of good. Nobody wants you. So just piss off, OK? Or at least the next time ask before you come up trying to steal people’s livelihoods.’

Someone in a doorway muttered, ‘Hear, hear,’ loud enough so that Issy caught it. She stumbled off, half blinded with tears, conscious of the eyes of the other café owners on her back – wearing that silly floral dress, they must think her a completely stupid priss. Hardly knowing where she was going, just that she couldn’t turn back through that crowd – feeling she could never ever walk that street again – she headed straight to the main road where she could lose herself in the mass of humanity, of all colours and types, thronging the Dalston Road, where no one would notice a crying woman in a vintage dress.