"Poirot investigates the murder of an old woman after her lodger is convicted of killing her and condemned to death because the investigating officer believes the man is innocent"--

In 1919, young couple Tommy Beresford and Tuppence Cowley form a partnership, hiring themselves out as "young adventurers". Their first case, however, is more of an adventure than they expect--working to find documents that, if they were known to the general public, would fuel a communist revolution in Britain. Undercover agents Tommy and Tuppence know that Jane Finn was carrying top secret documents when she disappeared five years ago. What they...

When a number of leading scientists disappear without a trace, concern grows within the international intelligence community. And the one woman who appears to hold the key to the mystery is dying from injuries sustained in a plane crash. Meanwhile, in a Casablanca hotel room, Hilary Craven prepares to take her own life. But her suicide attempt is about to be interrupted by a man who will offer her an altogether more thrilling way to die....

Hercule Poirot and the recently widowed Captain Arthur Hastings return to the scene of their first investigation many years before. Joining them at the estate is a mysterious stranger linked to five seemingly unrelated murders. Poirot must work quickly to prevent the sixth murder.

"Miss Marple receives a letter from a dead man instructing her how to conduct an investigation into a puzzlingly unspecific crime. In utter disbelief, Miss Marple reads the letter addressed to her from the recently deceased Mr. Rafiel--an acquaintance she had met briefly on her travels. He had left instructions for her to investigate a crime after his death. The only problem was, he had failed to tell her who was involved or where and when the crime...

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.

"Miss Marple senses danger when she visits a friend living in Stoneygates, a rehabilitation center. Her fears are confirmed when someone shoots at the administrator. Although he is not injured, a mysterious visitor is less fortunate--shot dead simultaneously in another part of the building. Pure coincidence? Miss Marple thinks not, and must use all her cunning to solve the riddle of the stranger's visit... and his murder"--

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 Porot 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. Porot has his suspicions when he is asked to find a missin...