Background
Source: Wikipedia
James Paul Czajkowski (born August 20, 1961), better known by his pen name of James Rollins, is an American veterinarian and writer of action-adventure/thriller, mystery, and techno-thriller novels who gave up his veterinary practice in Sacramento, California to be a full-time author. Rollins' experiences and expertise as an amateur spelunker and a certified scuba diver have provided content for some of his novels, which are often set in underground or underwater locations.