> Skip to content
  • Published: 26 August 2025
  • ISBN: 9780593904657
  • Imprint: RHUS Children's Books
  • Format: Paperback
  • Pages: 272
  • RRP: $16.99

The Mysterious Visitor: Trixie Belden

  • Julie Campbell



There’s a new face in Sleepyside, and Trixie Belden is sure this stranger is up to no good. Too bad no one else believes her. But if anyone can get to the truth of this visitor’s real motives, it’s detective Trixie!

There’s a new face in Sleepyside, and Trixie Belden is sure this stranger is up to no good. Too bad no one else believes her. But if anyone can get to the truth of this visitor’s real motives, it’s detective Trixie!

Trixie Belden hasn’t talked to Diana Lynch in a long time—not since her family got incredibly rich…and snobby. But the week before Halloween, Trixie and her best friend, Honey, spot Diana looking a little down, and Trixie knows it is time to put old grievances in the past.

Except the past is exactly the problem for Diana. Her long-lost uncle Monty recently arrived from Arizona, and Diana is less than thrilled about the reunion. Monty won’t stop pulling pranks, he is eager to buy lavish presents, and he constantly embarrasses Diana in front of all of her friends. Worst of all, he’s insisting that Diana host a Halloween party.

Monty may have fooled the adults, but Trixie is convinced he’s wearing a costume of his own. Can Trixie unmask Uncle Monty’s tricks and prove he is an imposter—or will Di be the one who is sent packing?

  • Published: 26 August 2025
  • ISBN: 9780593904657
  • Imprint: RHUS Children's Books
  • Format: Paperback
  • Pages: 272
  • RRP: $16.99

Praise for The Mysterious Visitor: 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

penguin pop image
penguin pop image