The Great Spy Showdown

Boxcar Children: You Solve the Mystery!

Grades 2–5
Ages 7–10

Choose a path. Follow the clues. Solve the mystery!

Hunt down clues with Henry, Jessie, Violet, and Benny Alden as they jump headfirst into a spy competition in this interactive format that allows YOU to solve the mystery!


The Boxcar Children have been invited to a secret spy competition by their favorite author. But there’s more to the competition than meets the eye. Can you help these savvy siblings take top prize? In this interactive, Solve-Your-Own-Mystery, readers will help the Aldens make decisions that will either lead them to victory or blow their cover.

Beloved by generations of families, Boxcar Children illustrated chapter books are full of wholesome excitement, danger, and mystery.

ISBN 9780807528600 (Paperback)
Published on Nov 10, 2026
Published by Random House Books for Young Readers
Pages 144
Dimensions 5-3/16 x 7-5/8
Age Range 7-10 years
Grade Grades 2-5

Gertrude Chandler Warner

Gertrude Chandler Warner was born in Putnam, Connecticut, on April 16, 1890. From the age of five, she dreamed of becoming an author. She wrote stories for her grandfather, and each Christmas she gave him one of these stories as a gift. Today, Ms. Warner is best remembered as the author of The Boxcar Children Mysteries.

JM Lee

J. M. Lee was born and raised in the great Minnesota north. After pursuing nerdy interests in comparative film studies, screenwriting, and Shakespeare, he graduated from the University of Minnesota with a much nerdier degree in linguistics with a focus in Japanese phonology.

Hollie Hibbert

Hollie Hibbert is a digital artist who has worked on a range of publishing and editorial projects. She enjoys exhibiting at comic conventions and other shows. Her other hobbies include book arts, playing the piano, traveling, reading, indoor cycling, cooking, and shopping.

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The Great Spy Showdown

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