Someone's been read their last rites... 1915, London: Working in the dusty bookshop that her Aunt Violet mysteriously inherited, Hannah Merrill is accustomed to finding twists in every tale. But discovering her beloved best friend Lily-Anne - with a paperknife through her heart - in the middle of the bookshop, is not a plotline she saw coming. The case is anything but textbook. With the discovery of a coded German message, and Hannah's instinct that Lily-Anne's husband is keeping secrets, she determines to get to the bottom of it. She can't do it alone though. To crack this case, Hannah will need the enlist the help of her outrageous, opinionated, only-occasionally-objectionable Aunt Violet. They think they're making progress until one of their chief suspects is found dead. And Hannah realises that she is herself now in the murderer's sights. Will the final chapter be the ending of a killer... or just a killer ending?