London, September 1666. The Great Fire rages through the city, consuming everything in its path. Even the impregnable cathedral of St. Paul's is engulfed in flames and reduced to ruins. Among the crowds watching its destruction is James Marwood, son of a disgraced printer and reluctant government informer. In the aftermath of the fire, a semi-mummified body is discovered in the ashes of St. Paul's, in a tomb that should have been empty. The man's body has been mutilated, and his thumbs have been tied behind his back.

The Great Fire has ravaged London. Now, guided by the Fire Court, the city is rebuilding, but times are volatile and danger is only ever a heartbeat away. James Marwood, a traitor’s son, is thrust into this treacherous environment when his father discovers a dead woman in the very place where the Fire Court sits. The next day his father is run down. Accident? Or another murder....

London, 1667. In the court of Charles II, it's a dangerous time to be alive. A wrong move could lead to disgrace, exile or death. The discovery of a murder at Clarendon House, the palatial home of one of the highest courtiers in the land, could have catastrophic consequences. James Marwood, a traitor's son, is ordered to cover up the murder. But the dead man is Edward Alderley, the cousin of one of Marwood's acquaintances. Cat Lovett had every reason to want her cousin dead. Since his murder, she has vanished, and all the evidence points to her as the killer.

Brother against brother. Father against son. Friends turned into enemies. No one in England wants a return to the bloody days of the Civil War. But Oliver Cromwell’s son, Richard, has abandoned his exile and slipped back into England. The consequences could be catastrophic. James Marwood, a traitor’s son turned government agent, is tasked with uncovering Cromwell’s motives. But his assignment is complicated by his friend - the regicide’s daughter, Cat Lovett - who knew the Cromwells as a child and who now seems to be hiding a secret of her own about the family.

Two young girls plot a murder by witchcraft. Soon afterwards, a government clerk dies painfully in mysterious circumstances. His colleague James Marwood is asked to investigate—but the task brings unexpected dangers. Meanwhile, architect Cat Hakesby is working for a merchant who lives on Slaughter Street, where the air smells of blood and a captive Barbary lion prowls the stables. Then a prestigious new commission arrives. Cat must design a Poultry House for the woman that the king loves most in all the world.

London 1671. The damage caused by the Great Fire still overshadows the capital. When a man’s brutally disfigured body is discovered in the ruins of an ancient almshouse, architect Cat Hakesby is ordered to stop restoration work. It is obvious he has been murdered, and Whitehall secretary James Marwood is ordered to investigate. It’s possible the victim could be one of two local men who have vanished – the first, a feckless French tutor connected to the almshouse’s owner; the second, a possibly treacherous employee of the Council of Foreign Plantations.