When a number of leading scientists disappear without a trace, concern grows within the international intelligence community. Are they being kidnapped? Blackmailed? Brainwashed? One woman appears to have the key to the mystery. Unfortunately, Olive Betteron now lies in a hospital bed, dying from injuries sustained in a Moroccan plane crash.

A new unabridged Agatha Christie mystery, featuring the young adventurers Lady ‘Frankie’ Derwent and Bobby Jones.While playing an erratic round of golf, Bobby Jones slices his ball over the edge of a cliff. His ball is lost, but on the rocks below he finds the crumpled body of a dying man. With his final breath the man opens his eyes and says, ‘Why didn’t they ask Evans?’Haunted by these words, Bobby and his vivacious companion, Frankie, set out to solve a mystery that will bring them into mortal danger…

In this Agatha Christie masterpiece, recently orphaned Anne Beddingfield sets out on the adventure of a lifetime but during her travels, she gets far more than she bargained for. While in London, the beautiful Anne witnesses a gruesome death when a stranger falls onto the rail tracks. A doctor comes out of nowhere, declaring the stranger dead. 

Sir Stafford Nye's journey home from Malaysia to London takes an unexpected twist in the passenger lounge at Frankfurt: a young woman confides in him that someone is trying to kill her.

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.

Still in the formative years of his career, Hercule Poirot faces a most taxing case: who killed Lord Cronshaw? Was Coco Courtenay's death on the same night a mere coincidence? And did she deliberately take an overdose of cocaine?

Tommy and Tuppence embark on a daring business scheme: Young Adventurers Ltd. Their advertisement says they are "willing to do anything, go anywhere". But their first assignment, for the sinister Mr Whittington, plunges them into more danger than they ever imagined.

Another title in the ever popular Agatha Christie series.The suave and debonair Colonel Race must solve a question, not of ‘accidental death or suicide’, but ‘murder or double murder’.Pretty, young Anne came to London looking for adventure. In fact, adventure comes looking for her – and finds her immediately at Hyde Park Corner tube station. Anne is present on the platform when a thin man, reeking of mothballs, loses his balance and is electocuted on the rails.The Scotland Yard verdict is accidental death.

Every great sleuth has his, or her, own preferred method of deduction. Take the charming Parker Pyne, who relies upon an intuitive knowledge of human nature to solve the "Problem at Pollensa Bay". Or Mr Satterthwaite, who seeks inspiration through his collaboration with the enigmatic Mr Quin in "The Harlequin Tea Set" mystery. Then, of course, there's Poirot, whose measured analysis of motive and opportunity is tested to the full in "Yellow Iris".

When a stranger runs his car into a ditch in dense fog near the South Wales coast, and makes his way to an isolated house, he discovers a woman standing over the dead body of her wheelchair-bound husband, a gun in her hand. She readily admits to murder, and the unexpected guest offers to help her concoct a cover story.

So far, it had been a typical New Year's Eve house party. But Mr. Satterthwaite, a keen observer of human nature, sensed that the real drama of the evening was yet to unfold. So it proved when a mysterious stranger arrived after midnight. Who was this Mr. Quin? And why did his presence have such a pronounced effect on Eleanor Portal, the woman with the dyed-black hair?

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.

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."

Gipsy's Acre was a truly beautiful upland site with views out to sea, and in Michael Rogers it stirred a child-like fantasy. There, amongst the dark fir trees, he planned to build a house, find a girl, and live happily ever after. But as he left the village, a shadow of menace hung over the land, for this was the place where accidents happened. Perhaps Michael should have heeded the locals' warnings: "There's no luck for them as meddles with Gipsy's Acre."

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.