Rose McQuinn has agreed to help her neighbour, Mrs Lawers, by delivering a family legacy to her only living relative. But Rose's philanthropic journey takes a turn towards the dangerous when she is attacked on board a train. On returning to Edinburgh she finds that further sinister events have occurred in her absence, sparking off a murder investigation. In her efforts to solve the case, Rose uncovers links with royal history, London's theatre community, and her own home in Solomon's Tower. Precariously balancing the murder inquiry alongside her obligations to family and friends, Rose discovers a web of connections which reveal that the past has not completely left the present . . .