# Giles Ducroy — The Great Airport Mystery character guide > Giles Ducroy in The Great Airport Mystery by Franklin W. Dixon. **Role:** major **Also known as:** Ducroy, the Ducroy **First appearance:** 0000-i-peril-from-the-sky ## Snapshot A mail pilot with a temper and a drinking problem, who crashes his plane and blames the Hardy boys for the wreck. ## Who they are Ducroy storms away from his own crash promising the boys will suffer for it, then leaves a farmer to vouch that the fault was his. His word carries the weight of a uniform, and the boys know he'll stretch the truth to clear himself with the airport officials. That threat, and his shadowy associates, make him the first thread worth pulling. ## Relationships ### [Frank Hardy](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/frank_hardy) _rivalry_ Frank is the main investigator pursuing Ducroy, a clever and elusive criminal mastermind. ### [Joe Hardy](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/joe_hardy) _rivalry_ Ducroy sees Joe as a secondary but persistent threat, often trying to outmaneuver him. ### [Newt Pipps](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/newt_pipps) _psychological_ Ducroy manipulates Pipps, using him as a pawn and keeping him under his control. ### [Ollie Jacobs](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/ollie_jacobs) _professional_ Ducroy employs Jacobs as a henchman and accomplice in his criminal schemes. ### [Chet Morton](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/chet_morton) _rivalry_ Chet is wary of Ducroy and helps the Hardys oppose him. ### [Fenton Hardy](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/fenton_hardy) _rivalry_ Fenton has a history with Ducroy as a criminal adversary, wanting to bring him to justice. ### [Frank Hardy](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/frank_hardy) _rivalry_ Frank is the main investigator pursuing Ducroy, a clever and elusive criminal mastermind. ### [Joe Hardy](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/joe_hardy) _rivalry_ Ducroy sees Joe as a secondary but persistent threat, often trying to outmaneuver him. ### [Ollie Jacobs](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/ollie_jacobs) _professional_ Ducroy employs Jacobs as a henchman and accomplice in his criminal schemes. ### [Newt Pipps](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/newt_pipps) _psychological_ Ducroy manipulates Pipps, using him as a pawn and keeping him under his control. ### [Ollie Jacobs](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/ollie_jacobs) _professional_ Ducroy employs Jacobs as a henchman and accomplice in his criminal schemes. ### [Chet Morton](https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/chet_morton) _rivalry_ Chet is wary of Ducroy and helps the Hardys oppose him. ## In the story ### [The Crash](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/ii-the-crash) The pilot of the crashed plane, who is intoxicated and unjustly blames the boys. ### [A Promise of Trouble](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/iii-a-promise-of-trouble) Accuses the boys of causing the crash and threatens them with trouble. ### [An Attack](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/iv-an-attack) Fired from his pilot job, confronts the Hardy boys on the street, attacks Frank, and is knocked down. ### [The Cabin in the Woods](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/vi-the-cabin-in-the-woods) Seen entering the mysterious cabin with two other men; recognized by Frank and Joe. ### [A Mysterious Conversation](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/vii-a-mysterious-conversation) Proposes a lucrative but dangerous scheme to Jacobs and Pipps. ### [Puzzled](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/viii-puzzled) Subject of the Hardy boys' discussion; they suspect he is involved in a crooked scheme after overhearing him mention ten thousand dollars. ### [IX: Missing Mail](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/ix-missing-mail) Mentioned as a suspect in the mail theft, but has an alibi placing him in Philadelphia. ### [X: Looking for Clues](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/x-looking-for-clues) Mentioned as having an alibi but still suspected by the Hardys; the search for clues is aimed at linking him to the robbery. ### [News from the City](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/xi-news-from-the-city) Mentioned as Frank's immediate suspect for the second airport mail robbery. ### [XVI: Mysterious Plans](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/xvi-mysterious-plans) Reveals his involvement in the planned robbery, claims he can fly any plane, and contributes $3,000 to the scheme. ### [Dangerous Business](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/xvii-dangerous-business) The mastermind, confident and evasive, plans to force down a plane on the night of the 28th. ### [The Warning Message](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/xviii-the-warning-message) Pilot of the plane and leader of the criminal group; reveals plans involving a confederate named Jed and a job on the night of the twenty-eighth. ### [The Twenty-Eighth](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/xix-the-twenty-eighth) Pilot of the plane, boasts about his control, and inspects the plane for hidden baggage. ### [That Night](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/xx-that-night) Returns to the farm with Jacobs, revealing the plan to fly that night and expressing disdain for Newt's cowardice, yet keeping him for the job. ### [XXI: West of Bacon Hill](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/xxi-west-of-bacon-hill) Pilots the plane, plans the holdup, and orders the crew to rob the mail pilot. ### [Captured](https://www.betterreads.dev/discover/the_great_airport_mystery_se/chapters/xxii-captured) Leader of the gang, captured by Joe, recognizes the Hardys with bitter surprise. ## Links - HTML: https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters/giles_ducroy - Book: https://www.betterreads.dev/discover/the_great_airport_mystery_se - All characters: https://www.betterreads.dev/discover/the_great_airport_mystery_se/characters