Death on the Lizard — Robin Paige

Lizard Village, 1903. It's the dawn of a new century, and telegraph companies around the world are scrambling to be the first to send a wireless signal across the Atlantic. But Italian prodigy Guglielmo Marconi beats them to the punch. Naturally, his feat has bruised some egos, but no one expects sabotage--much less murder...

After two apparently accidental deaths at the Marconi station, Charles, Lord Sheridan, an amateur forensic detective and wireless enthusiast, is asked to head an investigation. Meanwhile, his wife, Kate Sheridan, looks into the drowning of a local girl. Soon it becomes clear that the drowning and some dirty tricks at the station are not only connected, but also involve foreign espionage, malicious intrigue, and inexplicable messages sent out of the blue...