Olivier Norek (Author) Olivier Norek spent eighteen years in the French police force before beginning to write crime fiction. Since then, his books have sold millions of copies and won many prizes. The Winter Warriors is his first historical novel. While researching the book, Norek spent three months (the duration of the war itself) in Finland, experiencing the -35 C conditions in which the war was fought and in which more than 130,000 Russian soldiers died before Finland and the Soviet Union signed a peace treaty in March 1940.