In the book Shadow Divers, Kurson reveals the extreme measures that human beings will take in order to make crucial discoveries- specifically within the depths of the ocean. The two protagonists, John Chatterton and Richie Kohler discover a U-boat from World War II and must learn to put aside their differences in order to identify the ship whether it be through intense diving or researching official records. The two men become obsessed with the sub as they try to determine its identity. Kurson focuses on the difficult environment these two men are exposed to through the physical dangers of deep sea diving and how it ultimately becomes destructive to their relationships with family as they are constantly putting their lives in danger. Their
