It’s the Roaring Twenties. London’s bright young things are partying, Soho’s nightlife is buzzing and Augusta Peel is hiding in her basement. She has a reason to hide there: it’s home to her Bloomsbury workshop where she repairs old, neglected books. After a busy time during the war, all Augusta wants is peace and quiet - even if it is routinely disturbed by the tube trains beneath her feet.… But events take a turn when Augusta agrees to chaperone 19-year-old Harriet Jones on a date. Failing to get her home on time, she ends up in a riotous nightclub. She can’t imagine the evening getting much worse when the police raid it. But then the murder happens.