James Oliver "Jim" Curwood (June 12, 1878 - August 13, 1927) was an American action-adventure writer and conservationist. His books ranked among Publishers Weekly top-ten best sellers in the United States in the early 1920s. At least eighteen motion pictures have been based on or directly inspired by his novels and short stories. At the time of his death, he was the highest paid (per word) author in the world. His writing studio, Curwood Castle, is now a museum in Owosso, Michigan.Curwood was born in Owosso, Michigan, the youngest of four children. He left high school before graduation, but passed the entrance exam to the University of Michigan, where he enrolled in the English department and studied journalism. After two years, he quit college to become a reporter. In 1900, Curwood sold his first story while working for the Detroit News-Tribune. By 1909 he had saved enough money to travel to the Canadian northwest, a trip that provided the inspiration for his wilderness adventure stories. The success of his novels afforded him the opportunity to return to the Yukon and Alaska for several months each year that allowed him to write more than thirty such books. By 1922, Curwood's writings had made him a very wealthy man and he fulfilled a childhood fantasy by building Curwood Castle in Owosso. Constructed in the style of an 18th-century French chateau, the estate overlooked the Shiawassee River. In one of the homes' two large turrets, Curwood set up his writing studio. He also owned a camp in a remote area in Baraga County, Michigan, near the Huron Mountains as well as a cabin in Roscommon, Michigan. Title page of The Grizzly King, one of James Curwood's best known novels Curwood was an avid hunter in his youth; however, as he grew older, he became an advocate of environmentalism and was appointed to the Michigan Conservation Commission in 1926. The change in his attitude toward wildlife can be best expressed by a quote from The Grizzly King: "The greatest thrill is not to kill but to let live.