She joined the throng of passers-by who were huddled, mesmerised by the dancing. Was it a student gathering? She was puzzled. Who was in charge? She couldn’t see any organisers or anyone giving instructions, and had no idea where the music was coming from. People were merging with the group of their own accord and encouraging others to do the same. They all looked so carefree.

The music brought a smile to Rosa’s cold lips. Her heel began to tap and she was lost to nostalgia. It was such a relief to forget the pain and drudgery of the last year. To forget her arthritis and money worries. Was that Lulu and ‘Shout’? Her heart leaped. Many a time she and Józef had danced to that tune. Her mind was flooded with memories of all the occasions when they’d danced together, his warm hand in the small of her back, guiding her forwards, the other clasping hers, keeping her safe. She felt a lump in her throat. They were glorious memories, even if they were now tainted by the agony of loss. It had only been a year and she still missed him so much.

A waltz kicked in, floaty and dramatic. Initially, it had been youngsters dancing but now it was people of all ages, lured over by the infectious atmosphere of Brick Lane on a chilly April afternoon. Hearing the waltz start, a Sikh man checked his turban and, with a huge grin, he clasped the hands of a woman in a navy-blue trench coat. She was giggling like a schoolgirl, a small flat bag diagonally across her body, her head tilted back, carefree and stunned, as though she hadn’t had so much fun in ages. Rosa guessed the woman was about her age. Perhaps she was a widow too?

Rosa’s hips started to sway, and she was tempted to go over and join in. What was she thinking? She was being silly. She couldn’t. Who would mind the shop while she was cavorting in the street?

Another crowd of youths piled in, hee-hawing and smoking, in their thin cotton clothing and baseball shoes. Some with their bottoms hanging out of their trousers, others in drainpipe jeans. Didn’t they feel the cold? Several more children were in tow. Why weren’t they all at school? Before Rosa knew it, one of them had taken her hand and led her towards the group. Elvis’ crooning tones wafted down the street and once again Rosa’s spirits soared. The teenagers looked so funny, impersonating the rock ’n’ roll moves of ‘All Shook Up’. It was the most fun she’d had on a Friday afternoon since . . .

Józef would have enjoyed this. ‘Come on, Rosa,’ he would have said in his calm, decisive voice, and he’d have locked the shop, led her out into the street and begun whirling her around with that boyish grin of his.