The Stuffed Bear Mystery (Boxcar Children Mysteries, 90)

Myth of the Rain Forest Monster (The Boxcar Children Creatures of Legend)

The Amusement Park Mystery Graphic Novel (The Boxcar Children Graphic Novels)

The Case of the July 4th Jinx (Milo and Jazz Mysteries)

The Tunnel of Bones (Double Detectives Book 4)

The Hayley Mysteries: The Missing Jewels (The Hayley Mysteries, 2)

Violet and the Mummy Mystery (Violet Investigates Book 4)

The Clue at the Zoo (The Polk Street Mysteries)

Four orphaned siblings make a home for themselves in an abandoned boxcar.

The Boxcar Children

The Boxcar Children have entered the Ruby Hollow Gem  Mine's annual gem-hunting competition. With a little instruction and the  right gear, the Aldens have everything they need to become real rock  hounds! They have a natural talent for rock-finding, and it's not long  before Jessie makes a fabulous find. But before she can enter her ruby  in the competition, it disappears! Could there be a thief at the mine?  Now, instead of digging for rocks, the Aldens are digging for clues. Who  wants to win the contest so much that they would steal from the Aldens?  The children don't know, but they're determined to find out!

Problem-Solving

Teamwork

Curiosity

The Mystery of the Star Ruby (The Boxcar Children Mysteries)

Discover Your Child's Next Read

The Stuffed Bear Mystery (Boxcar Children Mysteries, 90)

Aimee Lilly, Gertrude Chandler Warner, 2002

Myth of the Rain Forest Monster (The Boxcar Children Creatures of Legend)

Aimee Lilly, Gertrude Chandler Warner, 2021

The Amusement Park Mystery Graphic Novel (The Boxcar Children Graphic Novels)

Gertrude Chandler Warner, 1992

The Case of the July 4th Jinx (Milo and Jazz Mysteries)

Amy Wummer, Lewis B. Montgomery, Mara Rockliff, 2010

The Tunnel of Bones (Double Detectives Book 4)

Zack Norris, 2012

The Hayley Mysteries: The Missing Jewels (The Hayley Mysteries, 2)

Hayley LeBlanc, 2022

Violet and the Mummy Mystery (Violet Investigates Book 4)

Harriet Whitehorn, Becka Moor, 2023

The Clue at the Zoo (The Polk Street Mysteries)

Patricia Reilly Giff, 1990