Wikipedia page about this book: https://en.wikipedia.org/wiki/Mysterious_Mr._Sabin

Release date is 2011-03-23

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"Mysterious Mr. Sabin" by E. Phillips Oppenheim is a novel written in the early 20th century. The story unfolds in a sophisticated London setting, and follows the enigmatic character Mr. Sabin, along with a beautiful young woman who is presumably his niece. The book delves into themes of mystery, intrigue, and the contrast between appearances and underlying realities as characters navigate a web of social intrigue and hidden identities. The opening of the novel introduces readers to a glamorous supper party at the "Milan" restaurant, where three young men are intrigued by the genteel presence of an elderly man, Mr. Sabin, and a stunning girl seated nearby. As the men speculate about their identities, the narrative captures the atmosphere of fascination and curiosity that surrounds the newcomers. Tension escalates when an assailant attempts to harm Mr. Sabin, prompting an act of heroism from Lord Wolfenden, who intervenes just in time. This encounter sets off a chain of events that intertwines the lives of these characters, each harboring secrets and desires, and sets the tone for the unfolding drama revolving around the mysterious Mr. Sabin. (This is an automatically generated summary.)

Original publication data not identified