Spunky tomboy Trixie Belden can’t stay out of trouble or stay away from mysteries! And now Trixie’s first three adventures are available in a boxed set of the retro books with Julie Campbell’s text from the 1940s editions and Mary Stevens’s original line drawings.

Trixie’s summer is going to be sooo boring with her two older brothers away at camp. But then a millionaire’s daughter moves into the next-door mansion, an old miser hides a fortune in his decrepit house, and a runaway kid starts hiding out in Sleepyside!

Trixie and Honey’s friend Jim has run away from Sleepyside before anyone could tell him that he is the only heir to the huge Frayne fortune. The girls set out across upstate New York in a trailer to track him down... and stumble onto another mystery along the way!

When Trixie and Honey explore an abandoned gatehouse, they discover more than dust and spiderwebs. Stuck in the dirt floor is a huge diamond! Could a ring of jewel thieves be hiding out in Sleepyside?

Trixie and Diana Lynch were friends for years before Di’s family became fabulously rich. So when Di’s long-lost uncle starts ruining her social life, Di turns to her old friend for help. But Trixie thinks Uncle Monty isn’t just an annoying relative–she thinks he’s an impostor!

When a storm blows through Sleepyside, the Bob-Whites’ clubhouse is crushed by a fallen tree. Trixie, Honey, and their brothers set to work at the Wheelers’ Game Preserve to raise the money to repair it. Of course, no one expected Trixie to stumble across the trail of a dangerous poacher!

Di Lynch’s Uncle Monty has invited Trixie, Honey, and the rest of the Bob-Whites to his Arizona dude ranch for winter vacation. There will be lots to do—horseback riding, swimming, festivals—but Trixie is hoping for an activity that isn’t on the usual list. She wants another mystery.

Principal Stratton wants to get rid of all clubs in Sleepyside High School, including the Bob-Whites! The only way they can save their club is to prove that they help out other people, too. Trixie quickly comes up with a plan to host a benefit antique show and sale.

There’s a new kid in town—a tough boy from New York City who wears a black leather jacket and pointy cowboy boots. Trixie doesn’t trust him for a second. She’s sure about one thing: Dan Mangan is trouble!

Uncle Andrew needs Trixie’s help. Trixie and the Bob-Whites are spending spring break at his farm in Iowa, and his sheep keep disappearing. He thinks they’re being stolen! Trixie may not know sheep, but she does know thieves. And she has an idea where to start looking for them...

The weather is finally warming up in Sleepyside and Trixie has plans for her and her best friend Honey. But Honey’s family has a visitor, a child who wants to tag along on Trixie’s and Honey’s expeditions. How can Trixie explore the mysterious burned-out house by the marsh and look for Captain Kidd’s hidden pirate treasure with a kid along?

The Bob-Whites are off to the Ozarks to spend some time with the Beldens’ Uncle Andrew. Trixie can’t wait to explore some dark, damp, and most of all, mysterious caves, because she has another scheme up her sleeve. A national magazine is offering a reward to anyone who can find three “ghost cave fish.” Nothing will stop Trixie from finding them!

“Trixie Cuidadito!” After a Mexican fortune-teller slips a strange Spanish poem into her purse, Trixie and the Bob-Whites find themselves in the middle of a New York City mystery. Villains and thieves and danger are all foreseen by the fortune-teller, but what do thieves want with Trixie?

When the Bob-Whites arrive on Cobbett’s Island for vacation, Trixie finds a mysterious letter. Many years ago, a fortune was hidden. But the clues in the letter are hard for Trixie to understand.