`Jefferson Farjeon is quite unsurpassed for creepy skill in mysterious adventures.`Dorothy L. SayersRichard 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. Temperley has a brief encounter with a beautiful young woman, but she flees the scene. 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.`Temperley sets off in pursuit of the mysterious woman from the hotel, and finds himself embroiled in a cross-country chase - by train and taxi - on the tail of a sinister serial killer. This classic novel by the author of the best-selling Mystery in White is a gripping thriller by a neglected master of the genre.