1. The Murder at the Vicarage (1930)

The murder of Colonel Protheroe—shot through the head—is a shock to everyone in St. Mary Mead, though hardly an unpleasant one. Now even the vicar, who had declared that killing the detested Protheroe would be ‘doing the world at large a favour,’ is a suspect—the Colonel has been dispatched in the clergyman’s study, no less. But tiny St. Mary Mead is overpopulated with suspects. There is of course the faithless Mrs Protheroe; and there is of course her young lover—an artist, to boot. Perhaps more surprising than the revelation of the murderer is the detective who will crack the case: ‘a whitehaired old lady with a gentle, appealing manner.’ Miss Jane Marple has arrived on the scene, and crime literature’s private men’s club of great detectives will never be the same.

• Saturday Review of Literature: ‘When she really hits her stride, as she does here, Agatha Christie is hard to surpass.’

2. The Thirteen Problems (1932)

Over six Tuesday evenings a group gathers at Miss Marple’s house to ponder unsolved crimes. The company is inclined to forget their elderly hostess as they become mesmerized by the sinister tales they tell one another. But it is always Miss Marple’s quiet genius that names the criminal or the means of the misdeed. As indeed is true in subsequent gatherings at the country home of Colonel and Mrs Bantry, where another set of terrible wrongs is related by the assembled guests—and righted, by Miss Marple.

The stories: ‘The Tuesday Night Club’; ‘The Idol House of Astarte’; ‘Ingots of Gold’; ‘The Bloodstained Pavement’; ‘Motive v Opportunity’; ‘The Thumb Mark of St Peter’; ‘The Blue Geranium’; ‘The Companion’; ‘The Four Suspects’; ‘A Christmas Tragedy’; ‘The Herb of Death’; ‘The Affair at the Bungalow’; ‘Death by Drowning.’

• Daily Mirror: ‘The plots are so good that one marvels…Most of them would have made a full-length thriller.’

3. The Body in the Library (1942)

The very-respectable Colonel and Mrs Bantry have awakened to discover the body of a young woman in their library. She is wearing evening dress and heavy make-up, which is now smeared across her cold cheeks. But who is she? How did she get there? And what is her connection with another dead girl, whose charred remains are later discovered in an abandoned quarry? The Bantrys turn to Miss Marple to solve the mystery.

Of note: Many of the residents of St. Mary Mead, who appeared in the first full-length Miss Marple mystery twelve years earlier, The Murder at the Vicarage, return in The Body in the Library. Mrs Christie wrote Body simultaneously with the Tommy and Tuppence Beresford spy thriller N or M?, alternating between the two novels to keep herself, as she put it, ‘fresh at task.’

• The Times Literary Supplement wrote of this second Marple novel: ‘It is hard not to be impressed.’

4. The Moving Finger (1943)

Lymstock is a town with more than its share of shameful secrets—a town where even a sudden outbreak of anonymous hate-mail causes only a minor stir. But all of that changes when one of the recipients, Mrs Symmington, appears to have been driven to suicide. ‘I can’t go on,’ her final note reads. Only Miss Marple questions the coroner’s verdict. Was this the work of a poison pen? Or of a poisoner?