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?

Summer. Holiday season. A time for rest and relaxation. But murder can strike anywhere, as this selection of an ‘unlucky 13’ mysteries by Agatha Christie proves. Join Hercule Poirot, Christopher Parker Pyne, Harley Quin and James Bond on this special holiday-themed collection, and take a dip into these short stories, perfect for killing time on the beach, by the pool - or at home, when planning to get away from it all.

June Whitfield stars as Miss Marple in seven full-cast BBC Radio 4 dramatisations. The stories included are: 'The Moving Finger', 'They Do It with Mirrors', 'Nemesis', 'Sleeping Murder', 'Tape-Measure Murder', 'The Case of the Perfect Maid' and 'Sanctuary'. 

A classic Marple mystery, read by the inimitable Richard E. Grant. 'Anyone who murdered Colonel Protheroe,' declared the parson, brandishing a carving knife above a joint of roast beef, ‘would be doing the world at large a service! 'It was a careless remark for a man of the cloth. And one which was to come back and haunt the clergyman just a few hours later. From seven potential murderers, Miss Marple must seek out the suspect who has both motive and opportunity.

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.

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.

Hercule Poirot's quiet supper in a London coffee house is interrupted when a young woman confides to him that she is about to be murdered. She is terrified, but begs Poirot not to find and punish her killer. Once she is dead, she insists, justice will have been done. Later that night, Poirot learns that three guests at a fashionable London hotel have been murdered, and a cufflink has been placed in each one's mouth. Could there be a connection with the frightened woman?

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.

John Moffatt stars as the Belgian detective Hercule Poirot. The ABC Murders: A chilling letter sets the sleuth on the trail of an enigmatic killer. After the Funeral: A wealthy businessman is dead, and his sister thinks it was murder. Death on the Nile: Poirot is in Egypt when a chilling murder takes place. Peril at End House: Whilst on holiday, the sleuth encounters a young woman, a hat and a bullet. The Murder of Roger Ackroyd: Mrs Farrars is found dead, one year after the death of her husband.

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.