Triple Jeopardy by Anne Perry

Set in the late 19th century, this gripping historical mystery follows Daniel Pitt, a young lawyer, as he navigates a complex web of deceit, betrayal, and murder. When a British diplomat is accused of a heinous crime in Washington, D.C., Daniel is tasked with defending him, only to uncover a conspiracy that stretches from the heart of the American capital to the streets of London. With the help of his brilliant scientist friend Miriam fford Croft, Daniel must unravel the truth before the sinister forces at play can silence him forever. The story is a thrilling exploration of justice, loyalty, and the lengths one will go to protect the innocent.