Book #3 of 15 in the Lord Peter Wimsey detective series.

A sudden death ruled natural. A doctor certain it was murder. A killer who leaves no trace.

When a wealthy cancer patient dies peacefully in her bed, neither the autopsy nor the circumstances reveal any evidence of foul play. Yet her physician remains convinced that Agatha’s sudden death came before her illness had run its course. His refusal to accept the police report's official explanation costs him his reputation—but captures the attention of brilliant gentleman detective Lord Peter Wimsey, who cannot resist investigating a murder that no one can prove ever happened.

Suspicion soon falls upon Agatha’s great-niece and nurse, Mary Whittaker, who conveniently inherits the estate just before a change in English intestacy law could threaten her claim. To investigate Mary’s respectable life in the quiet town of Leahampton, Wimsey enlists Miss Climpson, a sharp-eyed, wonderfully unconventional amateur sleuth whose unassuming manner grants her access to local gossip, church circles, and secrets the police could never uncover. Together, they uncover false identities, concealed relationships, and calculated deceptions—but can they expose the killer while their potential witnesses keep dying, one after another, under mysterious circumstances?

The third book in Dorothy L. Sayers’s iconic Lord Peter Wimsey mystery series, Unnatural Death delivers a chilling battle of wits between a quick-witted detective and a calculating murderer, combining psychological suspense and an inheritance conspiracy to create an enduring standout novel. Perfect for fans of Agatha Christie, Margery Allingham, Ngaio Marsh, Anthony Berkeley, Freeman Wills Crofts, and R. Austin Freeman, as well as readers who love medical mysteries, aristocratic period dramas, gentleman detectives, amateur sleuths, intricate whodunits, ingenious murder methods, and classic British crime fiction. Ideal for libraries, book clubs, and collectors of vintage mysteries.