Annie Grant loved her family, her violin, and her study. Once, a long time ago, she had also loved Liam. When Annie opened the door that evening, she expected the supermarket delivery. Instead, it was Liam on the doorstep, begging for help. Annie, still a schoolgirl, was drawn into a situation that threatened not only Liam's life, but the lives of many others, including her own. The Covid-19 pandemic was raging as Annie fought to keep Liam, her family and herself out of danger. It would take every bit of her remarkable intellect and her incredible ingenuity to achieve this. All the while, she had another struggle on her hands - to maintain her focus and achieve the ambition that involvement with Liam was threatening to derail. If it all went wrong a lot of people were going to die and not just from Covid-19.