A woman linked to an academic community returns to a college where puzzling acts and a climate of fear have erupted; an investigator connected to her seeks to discover who is behind the incidents and why.

A celebrated detective traveling home is detained when a murder is found on the Orient Express after heavy snowfall. Stranded passengers become a finite pool of suspects and the detective must sort through conflicting alibis, motives, and testimony to reconstruct what happened before the train resumes its journey.

A baffling murder in 1920s London brings together an informal club of six armchair detectives who each propose different solutions to the same facts. The novel turns the detective parlor game into its subject, testing how many plausible—but ultimately flawed—explanations can arise from identical evidence.

A murder occurs within a limited social circle and the central account is delivered in first person by a figure close to the investigation; a famous private detective appears and works from clues and interviews to identify the killer.

Set around a criminal investigation, the novel focuses on a case that raises questions about identity and culpability when the accused exhibits signs of multiple personality or severe mental disturbance.

A professionally curious narrator pursues the life of a shadowy criminal figure across interwar European settings, following clues from travel and chance encounters to reconstruct motive and method.

A mystery told through several first-person documents and witness statements: an artist-teacher becomes entangled with a disturbing female figure and a dispute over inheritance and identity.

An English academic with a penchant for puzzles becomes involved in a London mystery centered on a strange toyshop and a missing person. The setup puts a cerebral, amateur detective into a circle of eccentric characters and cryptic clues that require deduction and local knowledge to sort out.

Set in an early 20th-century Ontario village, the novel follows a woman constrained by family and social expectation who faces a decision point that lets her imagine a different life.

Set in 1870s upper-class New York, the novel follows a man caught between an established engagement and an unexpected attraction that threatens his place within a rigid social world.

Set in late-19th-century London, the novel follows an agent involved in espionage for an unnamed foreign power amid a small circle touched by anarchist agitation. The book traces the effects of political plotting and covert operations on ordinary lives, especially relationships marked by dependency and vulnerability.