Does an evil deed cast a shadow in advance? Does premeditated crime spread a baleful aura which affects certain highly-strung temperaments just as the sensation of a wave of cold air rising from the spine to the head may be a forewarning of epilepsy or hysteria? John Trenholme had cause to think so one bright June morning in 1912, and he has never ceased to believe it, though the events which made him an outstanding figure in the Strange Case of Mortimer Fenley, as the murder of a prominent man in the City of London came to be known, have long since been swept into oblivion by nearly five years of war. Even the sun became a prime agent of the occult that morning. It found a chink in a blind and threw a bar of vivid light across the face of a young man lying asleep in the front bedroom of the White Horse Inn at Roxton. It crept onward from a firm, well-molded chin to lips now tight set, though not lacking signs that they would open readily in a smile and perhaps reveal two rows of strong, white, even teeth