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The Secret of the Mansion: Trixie Belden
  • Published: 26 August 2025
  • ISBN: 9780593904596
  • Imprint: RHUS Children's Books
  • Format: Paperback
  • Pages: 272
  • RRP: $16.99

The Secret of the Mansion: Trixie Belden

Formats & editions
Paperback
26 Aug 2025
EBook
4 July 2017
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Trixie Belden first appeared more than 50 years ago in The Secret of the Mansion, which was followed by 38 more adventures as generations of readers grew up with teenage detective Trixie and her mystery-solving friends. Now, Trixie is back with a fresh look and ready to charm a new band of sleuths!

Trixie Belden first appeared more than 50 years ago in The Secret of the Mansion, which was followed by 38 more adventures as generations of readers grew up with teenage detective Trixie and her mystery-solving friends. Now, Trixie is back with a fresh look and ready to charm a new band of sleuths!

Trixie Belden is bracing for one boring summer. Her lucky older brothers are away at camp, so she is stuck babysitting. But when a new girl, Honey, moves in down the road, Trixie finally has the chance to make a best friend--and Honey isn't the only fresh face in town. 

The girls spy someone inside a nearby house, which is curious because Trixie knows her grumpy old neighbor, Mr. Frayne, is sick at the hospital. There's only one reason why someone would go poking around Mr. Frayne's run-down manor. They must be looking for the fortune that is said to be hidden on the property. But that's only a rumor...right?

Trixie wished for an adventure, and she might just get her most exciting summer yet!
  • Published: 26 August 2025
  • ISBN: 9780593904596
  • Imprint: RHUS Children's Books
  • Format: Paperback
  • Pages: 272
  • RRP: $16.99
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About the author

Julie Campbell

Julie Campbell (1908-1999) was from Flushing, New York, and shares the same birthday as her character, Mart Belden.  As the daughter of an Army Officer, she travelled widely during her childhood. When she was eight years old, she won her first short story contest while living in Hawaii. In 1933, Campbell married Charles Tatham Jr., and they worked together on many magazine stories and articles.  Campbell lived in a remodeled farmhouse in the Hudson River Valley with her husband and two sons when she began writing the Trixie Belden series. The series was set in fictional “Sleepyside,” but was based on the town Campbell was living in at the time in the Hudson River Valley near Ossining. Her home, “Wolf Hollow,” was the model for Crabapple Farm, and Campbell actually lived on Glendale Road. Julie Campbell passed away in 1999 at the age of 91.  Even at 91 she was still spirited and determined, just like Trixie.
JC

Also by Julie Campbell

Trixie Belden Boxed Set #1-4
The Mysterious Visitor: Trixie Belden
The Red Trailer Mystery: Trixie Belden
The Gatehouse Mystery: Trixie Belden
The Mystery in Arizona: Trixie Belden
The Mystery Off Glen Road: Trixie Belden
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Praise for The Secret of the Mansion: Trixie Belden

Readers Love Trixie Belden!
"Forget Daphne and Velma, Trixie Belden is the real deal." -Amanda, GoodReads reviewer

"Read Trixie Belden. She rocks." -Erin, GoodReads reviewer

"Trixie Belden is here to stay and delight a new generation of young readers and, just possibly, influence another generation of mystery writers." -Judith Sears, TheMysteryScene.com

"If I had to name the sources of my ongoing love for mysteries, these books would be at the top of the list. I thought then, and still do, that they were better than the more well-known mysteries starring her literary cousin, Nancy Drew." -Barbara Howe, ThisNeedToRead.com