Flying Blind is a mystery novel by American writer Max Allan Collins that was first published in 1999. The book was part of Collins's ongoing series of novels featuring private detective Nathan Heller. In the Heller series, the lead character is frequently featured interacting with historical figures of the 1930s and 1940. In Flying Blind, set in the mid-1930s, Heller is hired by book publisher and publicist George P. Putnam to act as a bodyguard for his wife, strong-willed celebrity aviator Amelia Earhart, and at the same time investigate who might be sending her threatening letters.