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Lieutenant Wilson is found dead at Reardon House, Dartford Kent.
But was it a suicide or a murder?
When Inspector Hargreaves of the Kent Constabulary seeks Sherlock Holmes’ aid in uncovering the truth, Holmes and Watson become embroiled in an investigation leading to the heart of Westminster. Possibly to the Crown Herself. Who is Sir Henry Wilburton? What is his connection to the late Professor Moriarty? Holmes must weave a dangerous path if he is to reach a successful conclusion. But with war a possible outcome of failure, the stakes are as high as they can get.