Books About Underground Worlds

The Best Underground Worlds Books for Kids

Looking for excellent children's books about underground worlds? 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.

Graphic Nov.

The Shortlist

Our 10 Favorite Books About Underground Worlds

Sale price

$1797

Chapter Book · Ages 10–13 · 2024

The Last Dragon on Mars

By Scott Reintgen · Book #1 in the The Dragonships series

A boy on Mars discovers a dragon that could save their doomed colony.

384 pages· 70,412 words· Est. 8 hour read

4.2/5 Goodreads · 3,026 ratings

$18.99Save 5%

Hardcover

Summary: Lunar Jones, a boy born on Mars, faces a bleak future on a planet cursed by a dying dragon. While scavenging in a restricted zone, he uncovers a living dragon that chooses him as its rider. With Mars on the brink of collapse, Lunar must embrace his new role to save his colony. Can he harness the dragon's power in time, or will Mars remain a barren wasteland? Discover the thrilling adventure where dragons hold the key to survival in a world where hope is scarce and danger lurks beneath the surface.

Graphic Nov.

Sale price

$759

Chapter Book · Ages 7–10 · 2015

Book Two

By Jamie Smart · Book #2 in the Bunny vs. Monkey series

Chaos erupts as Bunny and Monkey clash in a wild forest showdown with lasers and gadgets.

64 pages· 8,936 words· Est. 1.5 hour read

4.5/5 Goodreads · 320 ratings

$7.99Save 5%

Paperback

Summary: In a forest where peace is a rare visitor, Bunny faces off against Monkey, who arrives in a laser-firing hovercraft. As science and nature collide, the forest becomes a battleground with kitten cannons, robotic worms, and Trojan mooses. Bunny and his quirky friends, including Skunky and Pig, must navigate this chaotic landscape filled with lemony doomsday devices. Will they restore harmony, or will Monkey's antics tip the balance towards chaos? Dive into a world of irreverent humor and non-stop action in this epic clash of good versus evil.

Sale price

$958

Chapter Book · Ages 9–12 · 2007

Gregor and the Code of Claw

By Suzanne Collins · Book #5 in the The Underland Chronicles series

A prophecy demands a warrior's death as war looms. Can he save his family and the Underland?

412 pages· 79,023 words· Est. 9 hour read

4.3/5 Goodreads · 52,109 ratings

$9.99Save 4%

Paperback

Summary: In the Underland's final battle, Gregor faces a prophecy foretelling his death. With an army of rats closing in and his family trapped, he must unravel a cryptic code and confront his own dark side. A mysterious princess may hold the key, but time is slipping away. As the fate of the Underland hangs in the balance, Gregor must decide if he can defy destiny and save those he loves. Will he emerge as a hero, or will the prophecy claim him?

Sale price

$858

Chapter Book · Ages 9–12 · 2005

Gregor and the Curse of the Warmbloods

By Suzanne Collins · Book #3 in the The Underland Chronicles series

A deadly plague threatens the Underland. Can Gregor fulfill the prophecy and save his family?

358 pages· 66,093 words· Est. 7.5 hour read

4.2/5 Goodreads · 53,263 ratings

$8.99Save 5%

Paperback

Summary: Gregor returns to the Underland, facing a deadly plague that threatens all warmblood creatures. With his sister Boots and their mother by his side, he must unravel the Prophecy of Blood. As the disease strikes close to home, Gregor realizes his crucial role in stopping the biological warfare. Can he harness his power in time to save his family and the Underland? The stakes have never been higher in this gripping adventure.

Sale price

$958

Chapter Book · Ages 9–12 · 2004

Gregor and the Prophecy of Bane

By Suzanne Collins · Book #2 in the The Underland Chronicles series

A prophecy, a kidnapped sister, and a dangerous quest await in the Underland.

312 pages· 56,562 words· Est. 6.5 hour read

4.2/5 Goodreads · 53,459 ratings

$9.99Save 4%

Paperback

Summary: Gregor vowed never to return to the Underland, but when his sister is kidnapped, he must face a new prophecy. Joined by his bat, Ares, and the daring princess Luxa, Gregor ventures into the perilous Waterway. The fate of the Underland hinges on his quest to confront the ominous white rat, the Bane. Will he succeed, or will everything he holds dear be lost forever?

Sale price

$674

Chapter Book · Ages 5–9 · 2014

Beneath the Stone Forest

By Jordan Quinn, Robert McPhillips (Illustrator) · Book #6 in the The Kingdom of Wrenly series

A lost puppy in mysterious tunnels tests royal bonds and reveals hidden truths.

128 pages· 4,197 words· Est. 47 min read

4.3/5 Goodreads · 807 ratings

$6.99Save 4%

Paperback

Summary: Prince Lucas and Clara venture into the Stone Forest's labyrinthine tunnels, aiming to map the area and meet the gnomes. But when Princess Bella's puppy vanishes underground, the reluctant princess learns a vital lesson about the kingdom's true strength. Will they find the puppy and uncover the secrets of the Stone Forest? Dive into this enchanting adventure where friendship and courage reign supreme.

Sale price

$1899

Chapter Book · Ages 8–12 · 2013

Blue Moon

By James Ponti · Dead City series

A girl uncovers a sinister zombie plan while keeping her undead mother's secret.

336 pages· 64,393 words· Est. 9 hour read

4.3/5 Goodreads · 1,966 ratings

$19.99Save 5%

Hardcover

Summary: Molly Bigelow's world is turned upside down when she discovers her mother was a legendary zombie hunter—and not entirely dead. As she aids the Omega team in unmasking the original thirteen zombies in New York City, Molly must navigate a web of secrets and a looming undead threat. Her journey from the Macy’s Thanksgiving Day parade to Times Square on New Year’s Eve tests her loyalties and courage. Can Molly protect her family and friends while confronting a chilling conspiracy? The stakes are high, and her life will never be the same.

Sale price

$1797

Chapter Book · Ages 8–12 · 2015

Dark Days

By James Ponti · Dead City series

Molly must stop a zombie army threatening Manhattan's future.

304 pages· 58,286 words· Est. 8 hour read

4.3/5 Goodreads · 1,389 ratings

$18.99Save 5%

Hardcover

Summary: Molly Bigelow faces her greatest challenge as she battles the undead to save Manhattan. With her Omega team, she uncovers a plot by Marek Blackwell to fund a zombie army. As personal betrayals and a mysterious gold reserve come to light, Molly must race against time to thwart Blackwell's sinister plans. Can she protect her city and those she loves, or will the undead claim victory? Dive into a world where loyalty is tested and the stakes are life and death.

Sale price

$858

Chapter Book · Ages 10–14 · 2020

The Fowl Twins Deny All Charges

By Eoin Colfer · The Fowl Twins series

Twins crash a jet, face house arrest, and a kidnapping mystery unfolds.

336 pages· 73,803 words· Est. 8 hour read

4.1/5 Goodreads · 3,020 ratings

$8.99Save 5%

Paperback

Summary: Myles and Beckett Fowl's joyride in a stolen jet ends in disaster, sparking a dangerous mystery. With Myles kidnapped, Beckett and their fairy ally Lazuli must race across continents and face perilous foes to rescue him. Can Beckett outsmart villains without his brother's genius?

Sale price

$858

Chapter Book · Ages 8–12 · 2008

Zorgamazoo

By Robert Paul Weston

A brave girl discovers a fantastical creature underground. What secret does it hold?

The E.B. White Read Aloud Honor (2009)

288 pages· 29,234 words· Est. 4 hour read

4.1/5 Goodreads · 2,276 ratings

$8.99Save 5%

Paperback

Summary: Katrina Katrell, a daring girl, stumbles upon a mysterious creature in the subway. What is this fantastical being, and what secrets does it guard? Join Katrina and Morty the Zorgle on a rhyming adventure filled with whimsy and wonder. As they delve deeper into the unknown, will they uncover the truth behind the secret of Zorgamazoo? This tale promises a journey of courage and curiosity, perfect for those who crave intrepid adventures. Are you ready to explore the mysteries that lie beneath?

The Bookroo Book Club