Hardy Boys 09: The Great Airport Mystery
Penguin 1930
Great fit for 5th grade
Reading level and content both target 4th–8th grade · ages 9–14
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Genre
Themes
- teamwork
- brotherhood
- resourcefulness
- integrity
- justice
- perseverance
- crime-solving
- aviation
About this book
When valuable electronic parts start disappearing from cargo planes, teen detectives Frank and Joe Hardy go undercover at an aviation company to help their famous father crack the case. Clues link the thefts to a suspicious pilot’s death and send the brothers from busy airfields to a lonely Caribbean island. Fast-paced chases, clever deductions, and classic Hardy Boys banter keep readers turning pages. Great for mystery fans who enjoy action, gadgets, and teamwork without heavy violence.
Setting: Bayport and regional airports, with a trip to a remote Caribbean island; mid-20th-century United States
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Frequently Asked Questions
Is Hardy Boys 09: The Great Airport Mystery right for my child?
Yes — Hardy Boys 09: The Great Airport Mystery is a great fit for 5th grade. The reading level is AR 5.4, which is typical for 5th grade. The interest level is rated Middle Grades (4–8), meaning the themes and content are designed for ages 9–14 (4th–8th grade). Themes include teamwork, brotherhood, resourcefulness.
How long does it take to read Hardy Boys 09: The Great Airport Mystery?
At a typical 5th grade reading pace, Hardy Boys 09: The Great Airport Mystery takes around 3.9h to finish. The book has 39,000 words. Slower or faster readers may vary significantly.
Does Hardy Boys 09: The Great Airport Mystery have an AR quiz?
Yes — Hardy Boys 09: The Great Airport Mystery has an AR quiz available, worth 6 points. Your child will need to take and pass the quiz through their school's Accelerated Reader program to earn credit. The quiz is typically 5–20 multiple choice questions about plot, characters, and setting.
What grade level is Hardy Boys 09: The Great Airport Mystery?
Hardy Boys 09: The Great Airport Mystery has an AR reading level of 5.4, which places it at a 5th grade reading difficulty. The interest level is rated Middle Grades (4–8) — this reflects the age-appropriateness of the content and themes, not just the reading difficulty. A strong younger reader may handle the words fine while the themes are aimed at an older audience, or vice versa.