Tree House Mystery: The Boxcar Children Mysteries by Gertrude Chandler Warner

Join the Boxcar Children on a charming new adventure in Tree House Mystery by Gertrude Chandler Warner, where secret windows and hidden clues await behind every leafy branch.

In this beloved illustrated chapter book, the four Alden siblings—Henry, Jessie, Violet, and Benny—are determined to help their new neighbors by building a tree house together. But when they spot a mysterious window in the neighbor’s house that no one admits exists, the friends embark on a quest to uncover the home’s long-buried secret. With ingenuity and teamwork, the Boxcar Children navigate hidden passageways and decode cryptic hints to solve the Tree House Mystery, proving that courage and curiosity go hand in hand.

Features

• Themes: Friendship, adventure, problem-solving
• Genre: Children’s Mystery, Illustrated Chapter Book
• Reading Level: Ages 7–10; perfect for early readers and book clubs
• Unique Selling Points: New standalone mystery in the classic series, engaging illustrations throughout
• Bonuses: Discussion questions and activity guide in the back matter

About the Author

Gertrude Chandler Warner (1890–1979) created The Boxcar Children series to inspire young readers with tales of resourcefulness and family loyalty. Her timeless stories have sold over 80 million copies worldwide.

Related Reads

• The Boxcar Children by Gertrude Chandler Warner
• The Yellow House Mystery by Gertrude Chandler Warner
• The Mystery Ranch by Gertrude Chandler Warner

Uncover hidden secrets and embrace the thrill of investigation with Tree House Mystery—the perfect next read for young sleuths and Boxcar Children fans.