When a signalman discovers a mutilated body inside a railway tunnel near Groote Park, it seems to be a straightforward case of a man struck by a passing train. But Inspector Vandam of the Middeldorp police isn’t satisfied that Albert Smith’s death was accidental, and he sets out to prove foul play in a baffling mystery which crosses continents from deepest South Africa to the wilds of northern Scotland, where an almost identical crime appears to have been perpetrated.

George Surridge, director of the Birmington Zoo, is a man with many worries: his marriage is collapsing; his finances are insecure; and an outbreak of disease threatens the animals in his care. As Surridge's debts mount and the pressure on him increases, he begins to dream of miracle solutions. But is he cunning enough to turn his dreams into reality - and could he commit the most devious murder in pursuit of his goals?

The Surrays and their five children form a prolific writing machine, with scores of treatises, reviews and crime thrillers published under their family name. Following a convergence of the whole household at their Oxfordshire home, Ruth—the middle sister—decides to spend some weeks there recovering from the pressures of the writing life. Their next return is heralded by the tragic news that Ruth has taken her life after an evening at the Surrays' hosting a set of publishers and writers, one of whom is named as Ruth's literary executor in the will she left behind. 

From the Collins Crime Club archive, the forgotten second novel by Freeman Wills Crofts, once dubbed 'The King of Detective Story Writers' and recognised as one of the 'big four' Golden Age crime authors. When the body of Sir William Ponson is found in the Cranshaw River near his home of Luce Manor, it is assumed to be an accident - until the evidence points to murder.

Seymour Merriman's holiday in France comes to an abrupt halt when his motorcycle starts leaking petrol. Following a lorry to find fuel, he discovers that it belongs to an English company making timber pit-props for coal mines back home. His suspicions of illegal activity are aroused when he sees the exact same lorry with a different number plate - and confirmed later with the shocking discovery of a body.

There is no better hiding place for clues - or red herrings - than inside the pages of a book. With Martin Edwards as librarian and guide, delve into an irresistible stack of tales perfect for every book lover and armchair sleuth, featuring much-loved Golden Age detectives such as Nigel Strangeways, Philip Trent and Detective Chief Inspector Roderick Alleyn. But listeners should be warned that the most riveting tales often conceal the deadliest of secrets.

Dr. Strangeways meets the only woman he has ever really cared for, the hermit-like yet mysterious Angelina Frood, a striking young actress stalked by many demons. Tragedy strikes and the good doctor will do anything to solve the mystery. Following a chance encounter, he begins a correspondence with the famous Dr. Thorndyke, hoping that the medico-legal hybrid, a metaphorical centaur or merman, with a doctor's head and a lawyer's tail, can solve the case.

Luke flung the light of his torch full onto the face of the immobile figure. Then he had the shock of his life. The man had no face! Where his face should have been was a sort of inhuman, uniform blank! When a body is found at an isolated garage, Inspector Meredith is drawn into a complex investigation where every clue leads to another puzzle: was this a suicide or something more sinister? Why was the dead man planning to flee the country?

Stephen Munro, a demobbed army officer, reconciles himself to taking a job as a footman to make ends meet. Employed at Wintringham Hall, the delightful but decaying Sussex country residence of the elderly Lady Susan Carey, his first task entails welcoming her eccentric guests to a weekend house-party, at which her bombastic nephew - who recognises Stephen from his former life - decides that an after-dinner séance would be more entertaining than bridge. Then Cicely disappears!

It is a dark and misty night, and bachelors Nicholas and Ian are driving to the ball at Fordings, a beautiful concert hall in the countryside. There waits the charming Dilys Maine, and a party buzzing with rumours of one Rosemary Reeve who disappeared on the eve of this event the previous year. With thoughts of this mysterious case ringing in their ears, Dilys and Nicholas strike a stranger on the drive back home, launching a new investigation and unwittingly reviving the search for what really became of Rosemary Reeve. 

In Bloomsbury, London, Inspector Brook of Scotland Yard looks down at a dismal scene. The victim of a ruthless murder lies burnt beyond recognition, his possessions and papers destroyed by fire. But there is one strange, yet promising, lead - a lead which suggests the involvement of a skier. Meanwhile, piercing sunshine beams down on the sparkling snow of the Austrian Alps, where a merry group of holidaymakers are heading towards Lech am Arlberg. 

Following a mysterious explosion, the offices of Excelsior Joinery Company are no more; the three directors are killed and the peace of a quiet town in Surrey lies in ruins. When the supposed cause of an ignited gas leak is dismissed and the presence of dynamite revealed, Superintendent Littlejohn of Scotland Yard is summoned to the scene. But beneath the sleepy veneer of Evingden lies a hotbed of deep-seated grievances. Confounding Littlejohn's investigation is an impressive cast of suspicious persons, each concealing their own ax to grind.

Richard Temperley arrives at Euston station early on a fogbound London morning. He takes refuge in a nearby hotel, along with a disagreeable fellow passenger who had snored his way through the train journey. But within minutes the other man has snored for the last time - he has been shot dead while sleeping in an armchair. When the police arrive, Detective Inspector James discovers a token at the crime scene: 'a small piece of enamelled metal. Its colour was crimson, and it was in the shape of the letter Z'.

When Dr Raymond Ferens moves to a practice at Milham in the Moor in north Devon, he and his wife are enchanted with the beautiful hilltop village lying so close to moor and sky. At first they see only its charm, but soon they begin to uncover its secrets - envy, hatred and malice. Everyone says that Sister Monica, warden of a children's home, is a saint - but is she? A few months after the Ferens' arrival her body is found drowned in the mill-race. Chief Inspector Macdonald faces one of his most difficult cases in a village determined not to betray its dark secrets to a stranger.

On a dark November evening, Sir Wilfred Saxonby is travelling alone in the five o'clock train from Cannon Street, in a locked compartment. The train slows and stops inside a tunnel, and by the time it emerges again minutes later, Sir Wilfred has been shot dead, his heart pierced by a single bullet. Suicide seems to be the verdict, even though no motive can be found, but Inspector Arnold of Scotland Yard thinks again when he learns that a mysterious red light in the tunnel caused the train to slow down.