Books About Secret Missions

The Best Secret Missions Books for Kids

Looking for our other guide?

Explore our editor-reviewed guide to Books About Secrets, featuring 12 favorites and recommendations by age.

Looking for excellent children's books about secret missions? 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 Secret Missions

Sale price

$958

Chapter Book · Ages 8–13 · 2007

The Mysterious Benedict Society

By Trenton Lee Stewart, Carson Ellis (Illustrator) · Book #1 in the The Mysterious Benedict Society series

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

The E.B. White Read Aloud Award (2008)

485 pages· 117,838 words· Est. 13 hour read

7.0/7 Bookroo·4.2/5 Goodreads · 179,176 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.

Sale price

$1597

Chapter Book · Ages 9–12 · 2019

Young Captain Nemo

By Jason Henderson · Book #1 in the Young Captain Nemo series

A young adventurer battles oceanic threats with a submarine and friends.

288 pages· 55,231 words· Est. 6 hour read

7.0/7 Bookroo·3.9/5 Goodreads · 62 ratings

$16.99Save 6%

Hardcover

Summary: Twelve-year-old Gabriel Nemo, descendant of the legendary Captain Nemo, leaves his secluded underwater life to protect the seas. With his Nemotech submarine and loyal friends, he faces daring rescues and thrilling battles. When his sister reveals giant sea creatures lurking in wrecked ships, Gabriel must confront his most perilous mission yet. Can he harness his legacy to save the ocean from these mysterious beasts?

Sale price

$1797

Chapter Book · Ages 10–18 · 2017

The Voice, the Revolution & the Key

By Jenny L. Cote · Book #7 in the Epic Order of the Seven series

Animals guide future leaders to ignite a revolution.

672 pages· 223,471 words· Est. 20.5 hour read

4.5/5 Goodreads · 182 ratings

$18.99Save 5%

Paperback

Summary: In a world on the brink of revolution, the Order of the Seven animals embark on a mission to shape history. Liz must guide young Patrick Henry to become the Voice of the Revolution, while Max protects George Washington from unseen threats. Nigel aids Benjamin Franklin's crucial experiment, and Al gathers intelligence in the heart of the enemy's lair. Meanwhile, Kate must ensure the Marquis de Lafayette reaches America, or the fight for independence may end in disaster. As these young leaders rise, the fate of a nation hangs in the balance. Will they succeed in their quest for liberty?

Sale price

$1976

Chapter Book · Ages 10–14 · 2014

The Insider

By Ridley Pearson · Book #7 in the Kingdom Keepers series

A lost icon may be the key to saving Disneyland from a rising villain threat.

640 pages· 156,238 words· Est. 17.5 hour read

4.2/5 Goodreads · 4,507 ratings

$20.80Save 5%

Library Binding

Summary: As the Kingdom Keepers near high school graduation, peace shatters with the Overtakers' return. Finn Whitman and his friends must confront betrayal and deception to stop a looming disaster. Their only hope lies in a legendary icon thought lost forever. Can they save Disneyland from destruction, or will the villains finally triumph? The stakes have never been higher as the Keepers face their ultimate challenge.

Sale price

$958

Chapter Book · Ages 10–13 · 2008

The Mysterious Benedict Society and the Perilous Journey

By Trenton Lee Stewart, Diana Sudyka (Illustrator) · Book #2 in the The Mysterious Benedict Society series

A scavenger hunt turns into a race against time to rescue Mr. Benedict from his evil twin.

440 pages· 114,193 words· Est. 12.5 hour read

4.2/5 Goodreads · 61,294 ratings

$9.99Save 4%

Paperback

Summary: Reynie, Kate, Sticky, and Constance reunite for a scavenger hunt that quickly spirals into a high-stakes mission. Mr. Benedict, their mentor, has vanished, ensnared by his sinister twin, Mr. Curtain. With only a week to unravel the mystery and save him, the quartet must rely on their unique talents and teamwork. As they delve deeper, they confront challenges that test their bond and the very essence of their society. Can they outsmart Mr. Curtain and rescue Mr. Benedict before time runs out?

Sale price

$379

Picture Book · Ages 4–8 · 2014

Attack of the Nindroids

By Ms. Kate Howard · Book #8 in the LEGO Ninjago Reader series

Retired ninjas face a new threat in New Ninjago City.

80 pages· 1,543 words· Est. 12 min read-aloud

4.2/5 Goodreads · 244 ratings

$3.99Save 5%

Paperback

Summary: Cole, Jay, Kai, and Zane, retired from Spinjitzu, now teach at Sensei Wu's Youth Academy. A field trip to New Ninjago City reveals a looming threat as supergenius Cyrus Borg warns of a rising evil. Can these former masters combat a futuristic enemy, or will they fall to an unexpected upgrade? The stakes are high as the ninja must confront their greatest challenge yet.

Sale price

$958

Chapter Book · Ages 8–11 · 2009

Poacher Panic

Wild Rescue series

Twins embark on a daring mission to save tigers from poachers in Sumatra.

146 pages· 13,503 words· Est. 2 hour read

4.1/5 Goodreads · 141 ratings

$9.95Save 4%

Hardcover

Summary: Twins Ben and Zoe, left behind by their parents, are thrust into an unexpected adventure by their enigmatic uncle, Dr. Stephen Fisher. Tasked with rescuing a Sumatran tiger and her cubs from ruthless poachers, they must navigate the dangers of the jungle. Can they outsmart the poachers and save the endangered animals before it's too late?

Graphic Nov.

Sale price

$2370

Chapter Book · Ages 13–18 · 2007

Fall 1152

By David Petersen · Book #1 in the Mouse Guard series

Mice guards uncover a traitor while searching for a missing merchant.

192 pages· 1,374 words· Est. 11 min read

4.0/5 Goodreads · 14,594 ratings

$24.95Save 5%

Hardcover

Summary: In a perilous world, the Mouse Guard protects their kind from predators and treacherous paths. When Saxon, Kenzie, and Lieam are sent to find a missing merchant, they uncover a betrayal within their ranks. As they navigate dangerous territories, the stakes rise, threatening the very safety of their community. Can they expose the traitor and restore peace, or will their discovery lead to greater peril? Join their journey of courage and loyalty in a world where survival is never guaranteed.

Sale price

$474

Chapter Book · Ages 9–12 · 1998

The Threat

By K.A. Applegate · Animorphs series

A new recruit's reckless actions threaten to expose the Animorphs' secret.

158 pages· 27,530 words· Est. 3 hour read

4.0/5 Goodreads · 4,186 ratings

$4.99Save 5%

Paperback

Summary: David joins the Animorphs, bringing fresh strength to their fight. But as he begins to defy orders and take dangerous risks, the team faces a dire question: Is David a threat to their mission? With their secret hanging by a thread, the Animorphs must decide if they can trust their newest member or if his actions will lead to their downfall. As battle plans unfold, the stakes have never been higher, and the consequences of a wrong choice could be catastrophic.

Sale price

$379

Chapter Book · Ages 7–10 · 1999

Mrs. Jeepers in Outer Space

By Debbie Dadey, Marcia T. Jones, John Steven Gurney (Illustrator) · The Adventures of the Bailey School Kids Super Specials series

Space camp turns eerie when a vampire teacher tags along.

128 pages· 10,873 words· Est. 1.5 hour read

4.0/5 Goodreads · 199 ratings

$3.99Save 5%

Paperback

Summary: The Bailey School kids are thrilled for a week at space camp, but their excitement dims when their vampire teacher joins the trip. As they navigate space-themed challenges, they must also unravel the mystery of their teacher's true intentions. Will they uncover secrets that could change everything, or will their cosmic adventure take a dark turn?

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