Cornwall is rich with natural wonders: gorgeous shorelines and imposing cliffs. But these natural beauties conceal dangerous secrets, as amateur detectives Lord and Lady Sheridan discover.

Lizard Village, 1903: Wireless telegraph companies around the world scramble to develop the new communications technology. But an Italian beats them to it. His feat has bruised some egos, but no one expects sabotage, much less murder. After two apparently accidental deaths at the transmission station, Charles, Lord Sheridan, is asked to head an investigation and finds that valuable equipment has disappeared. And when a local girl drowns and it becomes clear that these deaths and the dirty tricks at the station are connected.