The Final Challenge

The Final Challengeicon

by David Cole

Illustrated by Shannon O'Toole

Publisher
Common Deer Press
Publication
May 01, 2026
Format
Paperback/Softback
Illustrated
No
Price
$12.99
Dimensions
6 x 9 x 0.4 in
ISBN
978-1998484157
ASIN
1998484157
Pages
158
Age
10 - 12 years
Category
FictionMathMiddle Grade Fiction

Rights Sold

🌍 World Wide Rights Available

Description

Join the Math Kids as they face their biggest challenges yet!

In the wake of their last adventure, Stephanie, Catherine, Jordan, and Justin find out their friend Special Agent Carleson has been suspended from the FBI. He’s accused of endangering the Math Kids, and if he’s found guilty, he could lose his job!

As the quartet tries to find ways to help Agent Carleson, trouble brews at school. In her new role as math club president, Catherine wants to lead the club to the state championship. But when their first preliminary competition goes awry and a strange note appear in her locker, she begins to suspect there’s a saboteur on the team.

The Math Kids must divide their attention between saving Agent Carleson’s job and saving math club. If they fail, both their math competition dreams and their future with the FBI will be at risk.

Author(s)

David Cole

David Cole

In his career, David Cole has spent years coaching and teaching math to elementary students. His math camp grew from kids forced by parents to attend into a sold-out program with a waiting list by year four. Through this experience, he learned that storytelling is one of the most effective teaching methods—inspiring The Math Kids and Emily and Sam series.

Illustrator(s)

Shannon O'Toole

Shannon O'Toole

Shannon O'Toole has been illustrating children's books since 2018. Originally a figurative painter, Shannon has been exploring new ways to tell stories through her art. Her artistic practices are inspired by the many unique characters and people in her life. In addition to her work in children's books, Shannon is an elementary school teacher. When she is not painting, she can be found drinking coffee, watching classic movies and exploring new recipes in her kitchen. Shannon lives and works outside of Toronto, Ontario, Canada.

Related Titles

The Missing Cache
The Missing Cacheicon
David R. Cole, Shannon O'Toole
The Election Calculation
The Election Calculationicon
David Cole, Shannon O'Toole
An Unsolved Proof
An Unsolved Prooficon
David Cole, Shannon O'Toole
An Incorrect Solution
An Incorrect Solutionicon
David Cole, Shannon O'Toole
An Unusual Pattern
An Unusual Patternicon
David Cole, Shannon O'Toole
A Sequence of Events
A Sequence of Eventsicon
David Cole, Shannon O'Toole