When the luxurious Blue Train arrives at Nice, a guard attempts to wake serene Ruth Kettering from her slumbers. But she will never wake again, for a heavy blow has killed her, disfiguring her features almost beyond recognition. What is more, her precious rubies are missing.

Sir Charles Cartwright should have known better than to allow 13 guests to sit down for dinner. For at the end of the evening one of them is dead - choked by a cocktail that contained no trace of poison. Predictable, says Hercule Poirot, the great detective. But entirely unpredictable is that he can find absolutely no motive for murder.…

Mr Shaitana was famous as a flamboyant party host. Nevertheless, he was a man of whom everybody was a little afraid. So, when he boasted to Poirot that he considered murder an art form, the detective had some reservations about accepting a party invitation to view Shaitana's private collection.

On holiday on the Cornish Riviera, Hercule Poirot is alarmed to hear pretty Nick Buckley describe her recent "accidental brushes with death". First, on a treacherous Cornish hillside, the brakes on her car failed. Then, on a coastal path, a falling boulder missed her by inches. Later, an oil painting fell and almost crushed her in bed. So when Poirot finds a bullet hole in Nick's sun hat, he decides that this girl needs his help. Can he find the would-be killer before he hits his target?

There's a serial killer on the loose, bent on working his way through the alphabet. And as a macabre calling card he leaves beside each victim's corpe the ABC Railway Guide open at the name of the town where the murder has taken place.

Miss Emily was old, rich, and afraid - and now, she's dead. Her terrified plea to Hercule Poirot came a little too late. All that's left is a house full of greedy heirs, and a very strange letter that could solve the mystery - or add to it.

Roger Ackroyd knew too much. He knew that the woman he loved had poisoned her brutal first husband. He suspected also that someone had been blackmailing her. Now, tragically, came the news that she had taken her own life with a drug overdose.

From seat No.9, Hercule Poirot was ideally placed to observe his fellow air passengers. Over to his right sat a pretty young woman, ahead, across the gangway in seat No.8, a detective writer was being troubled by an aggressive wasp. What Poirot did not yet realize was that behind him, in seat No.2, sat the slumped, lifeless body of a woman.

When Cora Lansquenet 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. At the reading of Richard's will, Cora was clearly heard to say, "It's been hushed up very nicely, hasn't it.... But he was murdered, wasn't he?"

In desperation, the family solicitor turns to Hercule Poirot to unravel the mystery....

Beautiful Caroline Crale was convicted of poisoning her husband, yet there were five other suspects: Philip Blake (the stockbroker) who went to market; Meredith Blake (the amateur herbalist) who stayed at home; Elsa Greer (the three-time divorcee) who had roast beef; Cecilia Williams (the devoted governess) who had none; and Angela Warren (the disfigured sister) who cried ‘wee wee wee’ all the way home.It is sixteen years later, but Hercule Poirot just can’t get that nursery rhyme out of his mind…

Framed in the doorway of Hercule Poirot's bedroom stands an uninvited guest, coated from head to foot in dust. The man stares for a moment, then he sways and falls. Who is he? Is he suffering from shock or just exhaustion? Above all, what is the significance of the figure 4, scribbled over and over again on a sheet of paper? Poirot finds himself plunged into a worldof international intrigue, risking his life - and that of his twin brother - to uncover the truth.

An urgent cry for help brings Poirot to France. But he arrives too late to save his client, whose brutally stabbed body now lies face downwards in a shallow grave on a golf course. But why is the dead man wearing his son's overcoat? And who was the impassioned love-letter in the pocket for? Before Poirot can answer these questions, the case is turned upside down by the discovery of a second, identically murdered corpse....

Christmas Eve, and the Lee family's reunion is shattered by a deafening crash of furniture and a high-pitched wailing scream. Upstairs, the tyrannical Simeon Lee lies dead in a pool of blood, his throat slashed. When Hercule Poirot offers to assist, he finds an atmosphere not of mourning but of mutual suspicion. It seems everyone had their own reason to hate the old man....

A few weeks after marrying an attractive widow, Gordon Cloade is tragically killed by a bomb blast in the London blitz. Overnight, the former Mrs. Underhay finds herself in sole possession of the Cloade family fortune. Shortly afterward, Hercule Poirot receives a visit from the dead man's sister-in-law who claims she has been warned by "spirits" that Mrs. Underhay's first husband is still alive. Poirot has his suspicions when he is asked to find a missing person guided only by the spirit world.

The dentist was found with a blackened hole below his right temple. A pistol lay on the floor near his out flung right hand. Later, one of his patients was found dead from a lethal dose of local anaesthetic. A clear case of murder and suicide. But why would a dentist commit a crime in the middle of a busy day of appointments? A shoe buckle holds the key to the mystery. Now - in the words of the rhyme - can Poirot pick up the sticks and lay them straight?