Some Persons Unknown (1898)

The plot centers on Jack Renton, a young man drawn into a web of mystery after the murder of his mentor, art collector Mr. Harrison. Determined to uncover the truth, Renton encounters a range of eccentric characters, including the enigmatic Miss Lorne and the crafty thief Mr. Manderton, as well as dangerous anarchists. As he investigates, Renton reveals the dark secrets lurking within polite society, leading to a suspenseful journey filled with unexpected twists. This vintage mystery promises to keep readers on the edge of their seats.