And then six tiny coffins are uncovered, inside each a handful of dried flowers and a bundle of mouldering rags. When Jem comes across these strange relics hidden inside the infirmary's old chapel, her quest to understand their meaning prises open a long-forgotten past--with fatal consequences.

In a trail that leads from the bloody world of the operating room and the dissecting table to the notorious squalor of Newgate Prison and the gallows, Jem's adversary proves to be both powerful and ruthless. As St. Saviour's destruction draws near, the dead are unearthed from their graves while the living are forced to make impossible choices. And murder is the price to be paid for the secrets to be kept.