Sir Maurice Newbury, Gentleman Investigator for the Crown, imagines life will be a little quieter after his dual success in solving The Affinity Bridge affair. But he hasn't banked on the reemergence of his villainous predecessor, Knox, who is hellbent on achieving immortality, and seems to be pursued by a secret agent who isn't quite as he seems.... The whole affair is so baffling that Newbury is reluctant to take time away from it to attend to the mysterious murders in the wake of the unveiling of an Egyptian mummy, let alone his partner Veronica's apparent obsession with tracking the growing pool of young women who have disappeared after being used as props in a magician's stage act. But it's all part of a day's work when your boss is the queen of England. So begins a thrilling steampunk mystery, the second in the series of Newbury & Hobbes investigations, and a grand adventure quite unlike any other.