Books About Undercover Operations

The Best Undercover Operations Books for Kids

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Explore our editor-reviewed guide to Spy Books, featuring 13 favorites and recommendations by age.

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Looking for excellent children's books about undercover operations? This collection brings together Bookroo's highest-rated and most useful picks in one place.

Start with our editorial favorites, then browse recommendations organized by reading stage to find the right book for your reader.

The Shortlist

Our 10 Favorite Books About Undercover Operations

The Mysterious Benedict Society
Sale price
$958
Chapter Book · Ages 8–13 · 2007

The Mysterious Benedict Society

Four kids face a secret mission at a ruleless institute. What will they uncover?

485 pages· 117,838 words· Est. 13 hour read
7.0/7 Bookroo·4.2/5 Goodreads · 180,578 ratings
$9.99Save 4%
Paperback
Summary: Four gifted children, chosen through mind-bending tests, embark on a secret mission at the enigmatic Learning Institute for the Very Enlightened. With no rules to guide them, they must navigate hidden tunnels and unravel mysteries that challenge their wits and courage. Can they uncover the truth lurking beneath the surface, or will the institute's secrets remain hidden? Join them on a thrilling adventure where intelligence and creativity are their only allies.
Firekeeper's Daughter
Sale price
$2089
Chapter Book · Ages 14–18 · 2021

Firekeeper's Daughter

A Native teen uncovers deadly secrets while investigating a new drug in her community.

494 pages· 130,001 words· Est. 12 hour read
4.3 Goodreads · 214,318 ratings
$21.99Save 5%
Hardcover
Summary: Daunis Fontaine, caught between her hometown and Ojibwe roots, faces a life-altering choice after witnessing a murder. Drawn into an FBI probe of a dangerous drug, she must navigate hidden truths and old wounds. As deception and danger escalate, Daunis must decide how far she'll go to protect her community and embrace her identity as an Anishinaabe kwe. Will she uncover the truth before it destroys everything she holds dear?
An Ember in the Ashes
Sale price
$1348
Chapter Book · Ages 12–18 · 2015

An Ember in the Ashes

A slave and a soldier defy an empire, risking everything for freedom.

480 pages· 124,141 words· Est. 11.5 hour read
4.2 Goodreads · 365,779 ratings
$13.99Save 4%
Paperback
Summary: In a brutal empire where defiance means death, Laia, a slave, must spy for rebels to save her brother. At the military academy, she meets Elias, a soldier yearning for freedom. Together, they face impossible choices that could alter the empire's fate. Will their intertwined destinies ignite hope or lead to destruction?
Mac Undercover
Sale price
$1248
Chapter Book · Ages 7–10 · 2018

Mac Undercover

By Mac Barnett, Mike Lowery (Illustrator) · Book #1 in the Mac B., Kid Spy series

A young boy receives a call from the Queen of England, asking for his help in retrieving a stolen spoon.

160 pages· 10,469 words· Est. 1.5 hour read
4.2 Goodreads · 2,489 ratings
$12.99Save 4%
Hardcover
Summary: Meet Mac B., a kid turned secret agent for the Queen of England. When the Crown Jewels vanish, Mac embarks on a global quest filled with secret identities and karate antics. Can he retrieve the treasure before it's too late? Dive into a world of humor, history, and adventure as Mac navigates the thrilling life of a young spy. Will his cleverness and courage be enough to solve the mystery? Join the chase and find out!
Blink and You Die
Sale price
$1797
Chapter Book · Ages 10–14 · 2016

Blink and You Die

By Lauren Child · Book #6 in the Ruby Redfort series

A young secret agent tops a mastermind's hit list, and a traitor hides on her team.

544 pages· 99,136 words· Est. 11 hour read
4.6 Goodreads · 2,835 ratings
$18.99Save 5%
Hardcover
Summary: Ruby Redfort, genius code-breaker and undercover agent, is running scared: a mastermind wants her dead, and one of the people after her is on her own team. Rather than hide and wait, Ruby sets out to save herself in the grand finale of the Ruby Redfort series.
Feel the Fear
Sale price
$759
Chapter Book · Ages 10–14 · 2014

Feel the Fear

By Lauren Child · Book #4 in the Ruby Redfort series

A ghostly thief strikes the city's tallest buildings, and a fearless agent grows reckless.

528 pages· 86,642 words· Est. 9.5 hour read
4.4 Goodreads · 3,588 ratings
$7.99Save 5%
Paperback
Summary: A ghostly foe is stealing from the highest buildings in Twinford, and thirteen-year-old secret agent Ruby Redfort is ready to defy death again to catch it. But Ruby's fearlessness is turning into recklessness, and that could land her in serious trouble. The fourth Ruby Redfort adventure.
Catch Your Death
Sale price
$759
Chapter Book · Ages 10–14 · 2013

Catch Your Death

By Lauren Child · Book #3 in the Ruby Redfort series

Wild animals and a stolen perfume formula hint at a scheme only one young agent can sniff out.

528 pages
4.4 Goodreads · 4,232 ratings
$7.99Save 5%
Paperback
Summary: Rumours of wild animals roaming Twinford don't impress Ruby Redfort, code-breaker and secret agent for Spectrum. But as high society buzzes over an exclusive perfume formula coming to town and priceless jewellery goes missing, Ruby senses a sinister plot. To keep Twinford safe she'll have to forget the rules and follow her nose. The third Ruby Redfort adventure.
Fizz and the Dog Academy Rescue
Sale price
$474
Chapter Book · Ages 7–10 · 2016

Fizz and the Dog Academy Rescue

By Lesley Gibbes, Stephen Michael King (Illustrator) · Book #2 in the Fizz series

A rookie dog faces tough training to become an undercover detective. Can he succeed?

80 pages· 4,975 words· Est. 42 min read
4.4 Goodreads · 147 ratings
$4.99Save 5%
Paperback
Summary: Fizz embarks on a challenging journey to become an undercover police dog. With the tryouts behind him, he now faces intense skills training alongside his new friend, Remi. As they tackle an unexpected challenge, will their detective instincts be enough to succeed? Dive into this action-packed adventure filled with humor and heart.
Out of Sight
Sale price
$674
Chapter Book · Ages 8–12 · 2020

Out of Sight

Book #4 in the Kensy and Max series

Twins race against time to solve a mystery in the City of Lights.

368 pages
4.5 Goodreads · 288 ratings
$6.99Save 4%
Paperback
Summary: Kensy and Max face their first Pharos review, a crucial test with no room for error. As they juggle school play preparations, a series of mysterious disappearances and thefts propel them into a thrilling adventure. Racing to the City of Lights, they must unravel the mystery before time runs out. Can they succeed in their mission and uncover the truth?
Undercover: Volume 3
Sale price
$674
Chapter Book · Ages 8–12 · 2020

Undercover: Volume 3

Young spies face a mission in Sydney that could save their parents.

400 pages
4.5 Goodreads · 327 ratings
$6.99Save 4%
Paperback
Summary: Kensy and Max are sent to a Sydney school on a covert mission. What starts as a simple task quickly escalates, demanding all their spy skills. With their parents' fate hanging in the balance, can they unravel the mystery before it's too late?
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Undercover Operations Picture Books

Illustrated read-alouds about undercover operations for preschool and elementary-age readers.

Sale price
$699

Secret Agent

Ages 4–8 · 2020

A spy cat uncovers a mysterious message and goes undercover to solve a case.

Undercover Ostrich
Sale price
$1799

Undercover Ostrich

Ages 4–9 · 2019

Uncover the mystery of sneaky ostriches and a hidden peanut mission.

The Greatest Show Unearthed
Graphic Nov.
Sale price
$3422

The Greatest Show Unearthed

Ages 8–12 · 2020

Mysterious disappearances follow a circus's arrival. Can two kids uncover the truth?

Browse by age

Undercover Operations Chapter Books & Middle Grade

Longer stories about undercover operations for developing and independent readers.

Sale price
$1099

Lone Wolf

Ages 12–18 · 2014

A teen's past collides with secret agents on a mission to expose a drug empire.

Heist and Seek
#6 in Series
Graphic Nov.
Sale price
$1299

Heist and Seek

Ages 7–10 · 2022

A group of investigators try to solve a mystery involving stolen paintings and a museum gala.

Sale price
$1899

Golden Gate

Ages 8–12 · 2021

Young spies face a mole and double agents in a thrilling mission.

Sale price
$1299

Top Secret Smackdown

Ages 7–10 · 2019

A young boy is recruited by the Queen of England to solve a mystery involving stolen birds from the Tower of London

Sale price
$699

Showoff

Ages 8–12 · 2012

A disgraced dog must win a championship to clear his name. Can a clever plan save him?

Sale price
$1099

Snakehead

Ages 10–+ · 2007

A teen spy infiltrates a deadly gang, uncovering secrets that threaten his life.

Sale price
$1899

Undercover Latina

Ages 10–13 · 2022

A teenage girl is recruited by her spy parents to infiltrate a high school and befriend the son of a white supremacist in order to stop a planned terrorist attack.