"On a dark November evening, Sir Wilfred Saxonby is travelling alone in the 5 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 answer, even though no reason can be found. Inspector Arnold of Scotland Yard thinks again when he learns that a mysterious red light in the tunnel caused the train to slow down. Finding himself stumped by the puzzle, Arnold consults his friend Desmond Merrion, a wealthy amateur expert in criminology. To Merrion it seems that the dead man fell victim to a complex conspiracy―but the investigators are puzzled about the conspirators' motives, as well as their identities. Can there be a connection with Sir Wilfred's seemingly untroubled family life, his highly successful business, or his high-handed and unforgiving personality? And what is the significance of the wallet found on the corpse, and the bank notes that it contained?"--.

Duchlan Castle is a gloomy, forbidding place in the Scottish Highlands. Late one night the body of Mary Gregor, sister of the laird of Duchlan, is found in the castle. She has been stabbed to death in her bedroom - but the room is locked from within and the windows are barred. The only tiny clue to the culprit is a silver fish's scale, left on the floor next to Mary's body.Inspector Dundas is dispatched to Duchlan to investigate the case. The Gregor family and their servants are quick - perhaps too quick - to explain that Mary was a kind and charitable woman. Dundas uncovers a more complex truth, and the cruel character of the dead woman continues to pervade the house after her death. Soon further deaths, equally impossible, occur, and the atmosphere grows ever darker. Superstitious locals believe that fish creatures from the nearby waters are responsible; but luckily for Inspector Dundas, the gifted amateur sleuth Eustace Hailey is on the scene, and unravels a more logical solution to this most fiendish of plots.Anthony Wynne wrote some of the best locked-room mysteries from the golden age of British crime fiction. This cunningly plotted novel - one of Wynne's finest - has never been reprinted since 1931, and is long overdue for rediscovery.
 

On a fine autumn weekend, Lord Aveling hosts a hunting party at his country house, Bragley Court. Among the guests are an actress, a journalist, an artist, and a mystery novelist. The unlucky thirteenth is John Foss, injured at the local train station and brought to the house to recuperate--but John is nursing a secret of his own. Soon events take a sinister turn when a painting is mutilated, a dog stabbed, and a man strangled. Death strikes more than one of the house guests, and the police are called. Detective Inspector Kendall's skills are tested to the utmost as he tries to uncover the hidden past of everyone at Bragley Court. This country-house mystery is a forgotten classic of 1930s crime fiction by one of the most undeservedly neglected of golden age detective novelists.