"Tracked by Wireless" by William Le Queux is a novel written in the early 20th century. The story centers around Geoffrey Falconer, a dedicated young radio engineer who finds himself embroiled in a web of mystery and crime stemming from his experiments with wireless technology. As Falconer becomes aware of an inexplicable signal and a series of odd events involving those around him, he is drawn into a narrative filled with suspense, deception, and intrigue. At the start of the novel, we meet Geoffrey Falconer in his laboratory, where he is puzzling over a strange and repetitive wireless signal that he hears every evening. This unusual frequency captures his curiosity, leading him to investigate its origins while navigating his personal connections, particularly with Sylvia Beverley, the daughter of a wealthy widow, and their interactions at a glamorous society event. As Falconer's intrigue deepens, he uncovers a sinister plot involving jewel thefts and the dubious characters connected to Sylvia's social circles. The opening sets a compelling stage for a gripping tale where technological advancements collide with nefarious intentions. (This is an automatically generated summary.)