Book picks similar to
The Arctic Code by Matthew J. Kirby


middle-grade
science-fiction
adventure
fantasy

The Neptune Project


Polly Holyoke - 2013
    Nere has never understood why she is so much more comfortable and confident in the water than on land until the day she learns the shocking truth—she is one of a group of kids who have been genetically altered to survive in the ocean. These products of the "Neptune Project" are supposed to build a better future under the waves, safe from the terrible famines and wars and that rock the surface world.But there are some big challenges ahead of her: no one ever asked Nere if she wanted to be part of a science experiment; the other Neptune kids aren't exactly the friendliest bunch, and in order to reach the safe haven of the new Neptune colony, Nere and her fellow mutates must swim across hundreds of miles of dangerous ocean, relying on their wits, their loyal dolphins and one another to evade terrifying undersea creatures and a government that will stop at nothing to capture the Neptune kids ... dead or alive.

Masterminds


Gordon Korman - 2015
    Eli Frieden has never left Serenity, New Mexico...why would he ever want to? Then one day, he bikes to the edge of the city limits and something so crazy and unexpected happens, it changes everything.Eli convinces his friends to help him investigate further, and soon it becomes clear that nothing is as it seems in Serenity. The clues mount to reveal a shocking discovery, connecting their ideal crime-free community to some of the greatest criminal masterminds ever known.The kids realize they can trust no one—least of all their own parents.

Gregor the Overlander


Suzanne Collins - 2003
    This world is on the brink of war, and Gregor's arrival is no accident. A prophecy foretells that Gregor has a role to play in the Underland's uncertain future. Gregor wants no part of it -- until he realizes it's the only way to solve the mystery of his father's disappearance. Reluctantly, Gregor embarks on a dangerous adventure that will change both him and the Underland forever.

The Sand Warrior


Mark Siegel - 2017
    When war erupts, three unlikely heroes will discover there’s more to themselves—and more to their worlds—than meets the eye. . . . Oona Lee, the clumsiest student at the Sand Dancer Academy, is a fighter with a destiny bigger than she could ever imagine. An Tzu, a boy from the poorest slums, has a surprising gift and a knack for getting out of sticky situations. Jax Amboy is the star athlete who is beloved by an entire galaxy, but what good is that when he has no real friends? When these three kids are forced to team up on an epic quest, it will take not one, not two, but 5 WORLDS to contain all the magic and adventure!

Space Case


Stuart Gibbs - 2014
    And he’s bored out of his mind. Kids aren’t allowed on the lunar surface, meaning they’re trapped inside the tiny moon base with next to nothing to occupy their time—and the only other kid Dash’s age spends all his time hooked into virtual reality games. Then Moon Base Alpha’s top scientist turns up dead. Dash senses there’s foul play afoot, but no one believes him. Everyone agrees Dr. Holtz went onto the lunar surface without his helmet properly affixed, simple as that. But Dr. Holtz was on the verge of an important new discovery, Dash finds out, and it’s a secret that could change everything for the Moonies—a secret someone just might kill to keep...

Jinxed


Amy McCulloch - 2018
    When Lacey finds out she hasn't been accepted into Profectus - the elite academy for cutting edge tech - it seems her dreams are over. Worst of all, rather than getting to choose one of the advanced bakus, she’s stuck with a rubbish insect one. Then, one night, Lacey comes across the remains of an advanced baku. Once it might’ve been in the shape of a cat but it’s now mangled and broken, no sign of electronic life behind its eyes. Days of work later and the baku opens its eyes. Lacey calls him Jinx – and Jinx opens up a world for her that she never even knew existed, including entry to the hallowed halls of Profecus. Slowly but surely, Jinx becomes more than just a baku to Lacey – he becomes her perfect companion. But what is Jinx, really? His abilities far surpass anything written into his code or built into his motherboard. He seems to be more than just a robotic pet. He seems ... real.

House of Secrets


Chris Columbus - 2013
    But everything changed when Dr. Walker lost his job in the wake of a mysterious incident. Now in dire straits, the family must relocate to an old Victorian house that used to be the home of occult novelist Denver Kristoff—a house that feels simultaneously creepy and too good to be true.By the time the Walkers realize that one of their neighbors has sinister plans for them, they're banished to a primeval forest way off the grid. Their parents? Gone. Their friends? A world away. And they aren't alone. Bloodthirsty medieval warriors patrol the woods around them, supernatural pirates roam the neighboring seas, and a power-hungry queen rules the land. To survive, the siblings will have to be braver than they ever thought possible—and fight against their darkest impulses. The key may lie in their own connection to the secret Kristoff legacy. But as they unravel that legacy, they'll discover it's not just their family that's in danger . . . it's the entire world.

PathFinder


Angie Sage - 2014
    She receives help from ExtraOrdinary Wizard Septimus Heap and Ex–ExtraOrdinary Wizard Marcia Overstrand, but the Lady’s brother, the Darke Sorcerer Oraton-Marr, has a plan that will put everyone Tod holds dear in danger. To save her people, Tod must embrace her identity as a PathFinder and navigate the often dangerous Ancient Ways.Full of Angie Sage’s characteristic humor and heart, PathFinder celebrates the joy of discovering one’s own personal Magyk, and of choosing the path that lets that Magyk flourish and grow.Perfect for anyone who can’t get enough of the world of Septimus Heap!

The Last Last-Day-of-Summer


Lamar Giles - 2019
    Otto and Sheed are the local sleuths in their zany Virginia town, masters of unraveling mischief using their unmatched powers of deduction. And as the summer winds down and the first day of school looms, the boys are craving just a little bit more time for fun, even as they bicker over what kind of fun they want to have. That is, until a mysterious man appears with a camera that literally freezes time. Now, with the help of some very strange people and even stranger creatures, Otto and Sheed will have to put aside their differences to save their town—and each other—before time stops for good.

Above World


Jenn Reese - 2012
    But after centuries spent hidden from the Above World, her colony’s survival is in doubt. The Kampii’s breathing necklaces are failing, but the elders are unwilling to venture above water to seek answers. Only headstrong Aluna and her friend Hoku are stubborn and bold enough to face the terrors of land to search for way to save their people. But can Aluna’s warrior spirit and Hoku’s tech-savvy keep them safe? Set in a world where overcrowding has led humans to adapt—growing tails to live under the ocean or wings to live on mountains—here is a ride through a future where greed and cruelty have gone unchecked, but the loyalty of friends remains true.

The Outlaws Scarlett and Browne


Jonathan Stroud - 2021
    When she discovers a wrecked coach on a lonely road, there is only one survivor – the seemingly hapless youth, Albert Browne. Against her instincts, Scarlett agrees to escort him to safety. This is a mistake. Soon, new and implacable enemies are on her heels. As a relentless pursuit continues across the broken landscape of England, Scarlett must fight to uncover the secrets of Albert’s past – and come to terms with the implications of her own.In his first new project since Lockwood & Co., Jonathan once again fuses action, humour and mystery to create a uniquely exciting adventure with two fascinating heroes at its heart.

Avalon


Mindee Arnett - 2014
    The agencies that govern the Confederation are as corrupt as the crime bosses who patrol it, and power is held by anyone with enough greed and ruthlessness to claim it. That power is derived from one thing: metatech, the devices that allow people to travel great distances faster than the speed of light.Jeth Seagrave and his crew of teenage mercenaries have survived in this world by stealing unsecured metatech, and they're damn good at it. Jeth doesn't care about the politics or the law; all he cares about is earning enough money to buy back his parents' ship, Avalon, from his crime-boss employer and getting himself and his sister, Lizzie, the heck out of Dodge. But when Jeth finds himself in possession of information that both the crime bosses and the government are willing to kill for, he is going to have to ask himself how far he'll go to get the freedom he's wanted for so long.

The Box and the Dragonfly


Ted Sanders - 2015
    Miseries. Mysteries . . .From the moment Horace F. Andrews sees the sign from the bus—a sign with his own name on it—everything changes. The sighting leads him underground, to the House of Answers, a hidden warehouse full of mysterious objects. But there he finds only questions. What is this curious place? Who are the strange, secretive people who entrust him with a rare and immensely powerful gift? And what is he to do with it?Horace quickly discovers that nothing is ordinary anymore. From the sinister man lurking around every corner to the gradual mastery of his newfound abilities to his encounters with Chloe—a girl who has an astonishing talent of her own—Horace follows a path that puts him in the middle of a centuries-old conflict.Horace’s journey leads him and Chloe deep into a place where every decision they make could have disastrous consequences. Most important, it links Horace to the Box of Promises and a future he never saw coming.With an action-packed blend of science fiction and fantasy, Ted Sanders creates a world where everything is more than it seems and where friendship and loyalty have the greatest power of all.

The League of Beastly Dreadfuls


Holly Grant - 2015
    Join the League. . . .   Anastasia is a completely average almost-eleven-year-old. That is, UNTIL her parents die in a tragic vacuum-cleaner accident. UNTIL she’s rescued by two long-lost great-aunties. And UNTIL she’s taken to their delightful and, er, “authentic” Victorian home, St. Agony’s Asylum for the Criminally Insane.But something strange is going on at the asylum. Anastasia soon begins to suspect that her aunties are not who they say they are. So when she meets Ollie and Quentin, two mysterious brothers, the three join together to plot their great escape!

Amari and the Night Brothers


B.B. Alston - 2021
    When he mysteriously goes missing, his little sister, 13-year-old Amari Peters, can’t understand why it’s not a bigger deal. Why isn’t his story all over the news? And why do the police automatically assume he was into something illegal? Then Amari discovers a ticking briefcase in her brother’s old closet. A briefcase meant for her eyes only. There was far more to Quinton, it seems, than she ever knew. He’s left her a nomination for a summer tryout at the secretive Bureau of Supernatural Affairs. Amari is certain the answer to finding out what happened to him lies somewhere inside, if only she can get her head around the idea of mermaids, dwarves, yetis and magicians all being real things, something she has to instantly confront when she is given a weredragon as a roommate. Amari must compete against some of the nation’s wealthiest kids—who’ve known about the supernatural world their whole lives and are able to easily answer questions like which two Great Beasts reside in the Atlantic Ocean and how old is Merlin? Just getting around the Bureau is a lesson alone for Amari with signs like ‘Department of Hidden Places this way, or is it?’ If that all wasn’t enough, every Bureau trainee has a talent enhanced to supernatural levels to help them do their jobs – but Amari is given an illegal ability. As if she needed something else to make her stand out. With an evil magican threatening the whole supernatural world, and her own classmates thinking she is an enemy, Amari has never felt more alone. But if she doesn’t pass the three tryouts, she may never find out what happened to Quinton.