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Children's Fiction General

An Artificial Test

The Math Kids (Book 8)

by (author) David Cole

illustrated by Shannon O'Toole

Common Deer Press
Initial publish date
Mar 2023
General, Friendship, School & Education, Mathematics, Mysteries & Detective Stories, General
  • Paperback / softback

    Publish Date
    Mar 2023
    List Price
  • eBook

    Publish Date
    Mar 2023
    List Price

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Recommended Age, Grade, and Reading Levels

  • Age: 9 to 12
  • Grade: 4 to 7
  • Reading age: 9 to 12


After a tough end to the school year, the Math Kids—Jordan, Justin, Stephanie, and Catherine—take a jet to London for an exciting summer vacation. But between exploring the city and seeing the sights, they’re quickly drawn into investigations of terrorist activity. Authorities are on high alert because of threats to landmarks across the city. But there’s something odd about the messages. Working alongside Bobby, a police officer tasked with being their trip guide, the kids must uncover the true purpose of a mysterious online message board or risk being sent home early. With their vacation plans and the safety of London at risk, the Math Kids are in for their most complex case yet!


Finalist for the Foreword INDIES Book of the Year Award!


"An abundantly diverting middle grade mystery seasoned with history and intrigue…A fast-moving plot, and the characters’ fun banter will encourage even reluctant readers to test the waters. Full of mystery, puzzles, and intrigue, this solid, tightly plotted read is a winner for middle graders. Un-put-downable." - The Prairies Book Review

About the authors

David Cole has been interested in math since he was a very young boy. He pursued degrees in math and computer science and has shared this love of math at many levels, including teaching at the college level, coaching elementary math teams, and running a summer math camp. He also has a love of writing and has written a number of plays that have been performed. The Math Kids was born of a desire to combine his interests and exercise both sides of his brain at the same time. Find him on his website or on Facebook, Twitter, and LinkedIn.

David Cole's profile page

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.

Shannon O'Toole's profile page

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