This is the very first Poirot/Hastings story. Set in 1916, we meet Captain Hastings as he is invalided out of the Great War and goes to convalesce at Styles Court, the family home of his great friend, John Cavendish. By an extraordinary coincidence, billeted in the village is a brilliant little retired detective with an egg-shaped head, who made a considerable impression on the Captain when he was in Belgium. Styles is not a happy household and in the blistering summer heat, tensions mount.

A blizzard has hit England. In the tiny village of Sittaford, on the fringes of Dartmoor, a party of six is gathered in Sittaford House, home of Captain Trevelyan. He has rented the house out for the winter and is staying in a nearby village. As evening draws in, a seance is proposed. But it reveals more than they had anticipated - TREVELYAN DEAD, spells out the board. Slowly the table begins to rock again, spelling out the word M-U-R-D-E-R. Is it true? And who would kill a man who doesn’t have an enemy in the world?

After the death of her husband, Dolly Bantry sold Gossington Hall to the former film star Marina Gregg and her husband. When the glamorous couple decide to throw a benefit party for the local hospital, the grounds are thronged with curious visitors, and for one of them, the day ends in tragedy. As Marina is serving cocktails in the house, she is cornered by the excitable Heather Babcock, who chatters away about their former meeting about eleven years ago before spilling her daiquiri all over herself and Marina.

Miss Marple, Agatha Christie’s deceptively mild spinster sleuth, is being treated to a few days’ holiday by her niece, staying at Bertram’s Hotel, a dignified, unostentatious establishment tucked away in a back street of busy Mayfair. Here is a place where sedate upper class ladies, retired military gentlemen and the higher echelons of the clergy can indulge in the comforts of a bygone age. But Miss Marple begins to feel uneasy. Something sinister lurks beneath the polished veneer.

A dying woman confesses a terrible secret to her priest along with a cryptic list of nine names. Before he is able to uncover anything more, the priest is struck dead in the fog and the police discover the list in his shoe. Our hero Mark Easterbrook, a historian, learns of a secretive organisation known as The Pale Horse and of their supernatural connections in the village of Much Deeping. The list of names seems to foretell the deaths of several people and Mark must piece together the clues and unearth the connections between them all.