The Leonides are one big happy family living in a sprawling, ramshackle mansion - until the head of the household, Aristide, is murdered with a fatal barbiturate injection. Suspicion naturally falls on the old man's young widow, 50 years his junior. But the murderer hasn't reckoned on the tenacity of Charles Hayward, fiancé of the late millionaire's granddaughter.

Officer Luke Fitzwilliam is on a train to London when he meets a strange woman. She claims there is a serial killer in the quiet village of Wychwood. He has already taken the lives of three people and is about claim his fourth victim. Fitzwilliam dismisses this as the ramblings of an old woman. But within hours she is found dead. Crushed by a passing car. And then the fourth victim is found.

Little did Anthony Cade suspect that a simple errand on behalf of a friend would make him the centrepiece of a murderous international conspiracy. Someone would stop at nothing to prevent the monarchy being restored in faraway Herzoslovakia. The combined forces of Scotland Yard and the French Surete can do no better than go in circles - until the final murder at Chimneys, the great country estate that yields up an amazing secret.

What is the connection between a failed suicide attempt, a wrongful accusation of theft against a schoolgirl, and the romantic life of a famous tennis player? To the casual observer, apparently nothing. But when a houseparty gathers at Gull's Point, the seaside home of an elderly widow, earlier events come to a dramatic head. It's all part of a carefully paid plan for murder.

In a remote house in the middle of Dartmoor, six shadowy figures huddle around a small table for a seance. Tension rises as the spirits spell out a chilling message: "Captain Trevelyan...dead...murder."

Agatha Christie’s classic thriller. Features the recurring character Colonel Race from Death on the Nile, Cards on the Table and The Man in the Brown Suit. Six people sit down to dinner at a table laid for seven. In front of the empty place is a sprig of rosemary – in solemn memory of Rosemary Barton who died at the same table exactly one year previously.No one present on that fateful night would ever forget the woman’s face, contorted beyond recognition – or what they remembered about her astonishing life.

To understand the strange goings on at The Pale Horse Inn, Mark Easterbrook knew he had to begin at the beginning. But where exactly was the beginning? Was it the savage blow to the back of Father Gorman's head? Or was it when the priest's assailant searched him so roughly he tore the clergyman's cassock? Or could it have been the priest's visit, just minutes before, to a woman on her death bed? Or was there a deeper significance to the violent squabble that Mark Easterbrook had himself witnessed earlier?

When Cora is savagely murdered with a hatchet, the extraordinary remark she made the previous day at her brother Richard's funeral suddenly takes on a chilling significance. In desperation, the family solicitor turns to Hercule Poirot to unravel the mystery.

Lucy Angkatell invited Hercule Poirot to lunch. To tease the great detective, her guests stage a mock murder beside the swimming pool. Unfortunately, the victim plays the scene for real. As his blood drips into the water, John Christow gasps one final word: "Henrietta". In the confusion, a gun sinks to the bottom of the pool. Poirot's enquiries reveal a complex web of romantic attachments. It seems everyone in the drama is a suspect, and each a victim of love.

Here are 12 ingenious, witty mysteries showing the author at her best, including: the curious disappearance of Lord Listerdale, the strange meeting on a train of a feckless man and a beautiful girl, and Philomel Cottage and the extraordinary country house visit of Edward Robinson. Each is expertly narrated by Hugh Fraser.

It's seven in the morning. The Bantrys wake to find the body of a young woman in their library. She is wearing evening dress and heavy make-up, which is now smeared across her cheeks. But who is she? How did she get there? And what is the connection with another dead girl, whose charred remains are later discovered in an abandoned quarry?

Clarissa, the wife of a Foreign Office diplomat, is given to daydreaming. "Supposing I were to come down one morning and find a dead body in the library, what should I do?" she muses. Clarissa has her chance to find out when she discovers a body in the drawing-room of her house in Kent. Desperate to dispose of the body before her husband comes home with an important foreign politician, Clarissa persuades her three house guests to become accessories and accomplices.

Mrs McGinty died from a brutal blow to the back of her head. Suspicion fell immediately on her shifty lodger, James Bentley, whose clothes revealed traces of the victim's blood and hair. Yet something was amiss: Bentley just didn't look like a murderer.

Major Hastings and Hercule Poirot are not interested in the case of the Spanish Chest, so obviously has it been reported in the papers that it seems an entirely closed book. But, when Hastings persuades Poirot to attend a rather fabulous party given by Lady Chatterton, there is someone sequestered upstairs waiting for the pair’s help. She’s so sure that there has been some great mistake and is desperate for their help. Will the contents of the dead man’s pockets reveal to the inscrutable eye of Hercule Poirot who the culprit is?

Among the towering red cliffs of Petra, like some monstrous swollen Buddha, sat the corpse of Mrs Boynton. A tiny puncture mark on her wrist was the only sign of the fatal injection that had killed her.