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. Heller is initially reluctant to act as a "babysitter" and he and Earhart have a rocky relationship at first, but eventually their relationship progresses to the point where they become lovers; this reflects historic evidence that in real life Earhart asked Putnam for an open marriage.Before Heller is able to solve the case, Earhart leaves on her ill-fated attempt to fly around the world and disappears. The book picks up again several years later when Heller learns that Earhart is being held captive by the Japanese (which in reality is often suggested in speculations about her ultimate fate). Heller then attempts to rescue her from her prison. Source: Wikipedia (en)