The Bedlam Detective by Stephen Gallagher

Set in the early 20th century, the story follows Sebastian Becker, a former Pinkerton detective now working for the British Crown as a special investigator. Tasked with assessing the sanity of wealthy individuals, Becker finds himself embroiled in a mysterious case involving Sir Owain Lancaster, a man haunted by the tragic deaths of his family during an Amazon expedition. As Becker delves deeper, he uncovers a web of secrets, madness, and supernatural elements that challenge his understanding of reality, forcing him to confront the thin line between sanity and insanity.

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