A deadly river collision puts Dirk Pitt on the trail of an ancient mystery stretching back thousands of years. When a rogue cargo freighter strikes an oil tanker in the Detroit River, the oil spill is the worst marine disaster in years. Dirk Pitt's NUMA team lead the clean-up operation, with the help of new green tech firm, BioRem. But when one of NUMA's best divers dies suspiciously while working on the wreck, Pitt fears there's more to BioRem than simply saving the environment. Discovering a trail of unexplained deaths which appear to be linked to BioRem's sites around the worl Celtic Empire - Clive Cussler, Dirk Cussler od authora Clive Cussler, Dirk Cussler a nakladatelství za skvělé ceny na e-shopu Martinus. cz.