In The Sky Prisoner Artie and his friends witness a small plane crash in the forest. When they arrive on the scene, the plane is empty, but they discover a coded message taped to the control panel. The plane was stolen from a nearby airport, one of many that have recently disappeared without a trace, and Artie is determined to break the code and solve the mystery of the missing planes. In this humorous and exciting adventure, Artie runs across a suspicious airport manager, lots of cows, a gang of airplane thieves, and he takes an unplanned airplane journey halfway across the country, the prisoner of a singing pilot who can't hit the high notes.
