The Lost Key

In this fast-paced international thriller from Catherine Coulter, FBI agent Nicholas Drummond and his partner investigate the mysterious death of a naval historian linked to a hidden World War I U-boat and a stash of gold bullion. As the case unfolds, they race against time to find the victim’s missing children, uncovering cryptic clues and crossing paths with a wealthy industrialist with dangerous ambitions. Filled with suspense, real-life references, and cutting-edge science, the story keeps listeners guessing until the very end.