As the police raid a building in Lancaster Gate, it explodes. Some policemen are gravely hurt, many are killed. The nation rises in horror at this anarchic violence against the men who ve vowed to keep them safe. Isadora Cornwallis fears she knows more than she should about the attack. Her nephew, Alexander, has friends amongst the anarchists seeking to disrupt England s traditions, and is clearly lying about the cuts to his face that appeared that night. Isadora hopes that Thomas Pitt will be able to discover what happened, and find a way to help Alexander. But trying to reveal the truth will bring more danger and pain than Pitt has ever experienced...