James Rollins

James Rollins, born James Paul Czajkowski, is an American veterinarian and #1 New York Times bestselling author of action-adventure thrillers, mysteries, and techno-thrillers, including the Sigma Force series. He graduated from the University of Missouri, established a veterinary practice in Sacramento, California, before becoming a full-time writer, and also publishes fantasy novels under the pen name James Clemens.[1][3][4]