“A message has just arrived from the police. The superintendent said there wasn’t enough evidence to prosecute Dr. Tucker. The few people he interrogated about the doctor’s behaviour had sworn by him, claiming he was a genius.”

He sat at his desk. Vivienne was more important. “I need to protect Vivienne until we can find enough evidence to lock Tucker away for good. We need to convince the police superintendent to press the matter further.”

“We will. But in the meantime, on my way here from the church, I went to Harley Street. There’s a practice registered to a Dr. Lawrence Tucker up and running. He’s still in business.”

“I don’t understand. How much money can he make by selling remedies that make people worse?”

Captain Jackson scratched his chin. “He became the favourite physician of the most prestigious families in London. Many still swear by him. What we can find depends on how many people he’s swindling. We need to take a closer look at his office, at his files, and at his patients.”

Samuel had been around the captain for quite a long time to understand what he didn’t say. “By closer look, you mean breaking into his office.”

“Yes, and we know the perfect person for the job.”