A quick head count told her there were about fifty people dancing now and a good twenty more hanging around. The street whiffed of whacky-backy. Rosa had forgotten her nagging joints and aching legs; the grimy shelves with mounting dust; the delivery boxes she couldn’t carry. For a few sweet moments, she’d stopped feeling sick to death of the damn shop, of book-keeping and fretting over decisions. She didn’t care about any of it anymore. All she wanted was—

A loud splitting sound tore through the air, followed by a series of cracks and bangs. Rosa gasped as orange flames burst out of the top floor windows of the shop opposite, and billowed upwards. Swirling streams of black smoke inked the pale sky. Fire raged behind the first-floor windows, and the ground floor shop was filled with smoke and flames. She cried out in pain as acrid fumes hit her lungs, forcing her to clamp her hand over her mouth. Everyone was shouting and running for cover as burning timber peeled away from windows. Screams pierced the air as lengths of wood and red-hot embers rained down on the crowd below. Rosa’s legs were like jelly and she felt dizzy. She stumbled over something on the ground in front of her and lurched forwards. She made out a woman, clutching her arm.

‘Help,’ came the agonised cry at Rosa’s feet. ‘Please help me.’

Panic engulfed Rosa, and she was transported back to the sensory onslaught of the Warsaw Ghetto, to primitive memories of endless screaming, to the cacophony of bombs and blasts and gunshots. From behind, someone shoved her out of the way and she stumbled forwards. All around her, people were coughing, retching and staggering, scarves and hands clasped over their mouths, desperate to escape the blaze. The air was cloying. Putrid. She was plunged into blind terror, realising she could die. This wasn’t Poland, and it wasn’t the end of the war, but she had to get away from the fire and ring 999 before someone died.

As the blaze ripped through the roof, smoke continued to spiral upwards into the sky. Rosa staggered blindly towards the blue door of her shop, to the step and doorway, arms groping ahead for something to grab. The fumes bit at her lungs and she was gasping for air so much she was retching. Finally, her hands grabbed the handle. She used all her weight to heave the door open and stumbled inside, pushing it shut behind her as quickly as she could.

She sucked in some air.

It was like breathing through needles.

She had to get to the phone in the back room. Stands and magazine racks flashed past her as she lurched towards the till, gasping for breath and snatching for a hold. She hauled her way round the counter, head spinning, and grabbed the phone receiver from the wall. Her eyes were streaming.

Keep blinking, she told herself.

Breathe.