The Lost Key

In the gripping second installment of Catherine Coulter's international thriller series, freshly minted FBI agent Nicholas Drummond teams up with partner Mike Caine to investigate a Wall Street stabbing that unravels a web of deception. As they delve deeper, they discover that the victim, John Pearce, was entangled in a shadowy quest for a missing World War I U-boat filled with gold. With Pearce's children mysteriously vanished, the agents are drawn into a frantic international manhunt, racing against time and facing off against a billionaire with sinister ambitions.