James Rollins is a pen name of James Paul Czajkowski (born August 20, 1961 in Chicago, IL), 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. Under the pen name James Clemens, he has also published fantasy novels, such as ''Wit'ch Fire'', ''Wit'ch Storm'', ''Wit'ch War'', ''Wit'ch Gate'', ''Wit'ch Star'', ''Shadowfall'' (2005), and ''Hinterland'' (2006).
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![Rollins in [[Springfield, New Zealand]] (2008)](https://upload.wikimedia.org/wikipedia/commons/2/26/Author_james_rollins_2008_%28cropped%29.jpg)
James Rollins is a