Book picks similar to
Hunt for the Hydra by Jason Fry


science-fiction
sci-fi
middle-grade
adventure

Norby, the Mixed-Up Robot


Janet Asimov - 1983
    Jeff Wells, a Space Academy student, and Norby, a second-hand robot with unusual abilities, find themselves involved in the sinister plans of Ing the Ingrate, who intends to take over the universe.

The Last Cuentista


Donna Barba Higuera - 2021
    Earth has been destroyed by a comet, and only a few hundred scientists and their children – among them Petra and her family – have been chosen to journey to a new planet. They are the ones who must carry on the human race.Hundreds of years later, Petra wakes to this new planet – and the discovery that she is the only person who remembers Earth. A sinister Collective has taken over the ship during its journey, bent on erasing the sins of humanity's past. They have systematically purged the memories of all aboard – or purged them altogether.Petra alone now carries the stories of our past, and with them, any hope for our future. Can she make them live again?

The Expeditioners and the Treasure of Drowned Man's Canyon


S.S. Taylor - 2012
    the tinkerer, and Zander the brave. Why are so many government agents trying to steal the half-map? (And where is the other half?) It’s up to Alexander’s children—the Expeditioners—to get to the bottom of these questions, and fast.

Star Wars: Episode I - The Phantom Menace


Patricia C. Wrede - 1999
    A young Jedi is discovered. A dormant evil rises again, New truths are found. Bestselling author Patricia C. Wrede brings to life the epic story of "Star Wars: Episode I," in a stunning novel sure to captivate legions of readers.

The Journal of Curious Letters


James Dashner - 2008
    Tick, is an average thirteen-year-old boy until the day a strange letter arrives in his mailbox. Postmarked from Alaska and cryptically signed with the initials “M.G.,” the letter informs Tick that dangerous — perhaps even deadly — events have been set in motion that could result in the destruction of reality itself. M.G. promises to send Tick twelve riddles that will reveal on a certain day, at a certain time, at a certain place, something extraordinary will happen. Will Tick have the courage to follow the twelve clues M.G. sends to him? Will he be able to solve the riddles in time? Will Tick discover the life he was meant to live?The first volume of an outstanding new children’s fantasy series, The Journal of Curious Letters is filled with adventure, humor, riddles, and, oh, yes — danger... As M.G. warns Tick, Very frightening things are coming your way. Will you join Tick and his friends on an amazing journey through the Realities? What will your choice be?From the Publisher (Shadow Mountain)

Virus on Orbis 1


P.J. Haarsma - 2006
    But once their spaceship lands, he is identified as the first-ever "softwire" — a human with the ability to enter and communicate with computers through his mind — and becomes the focus of intergalactic intrigue. Johnny and the rest of the refugee orphans are put to work in alien factories, and very quickly things go very wrong. When the all-knowing, all-controlling, and technologically "perfect" central computer starts malfunctioning, suspicious eyes turn to Johnny. Is he the one responsible? This action-packed, fast-paced sci-fi novel will keep kids on the edge of their seats.

A Riddle in Ruby


Kent Davis - 2015
    She is the daughter of a smuggler and pirate, and has been learning how to swindle and steal and pick the most complex locks for as long as she can remember. But a collision with aristocratic young lord Athen sends her spinning into chaos. Little did she know that her whole life has been spent in hiding from nefarious secret societies and the Royal Navy . . . who are both now on her trail.An adventure woven through an alternate colonial Philadelphia—a world ruled by alchemists who mix magic and science; a world filled with those who would help, and those who would use others for their own dark ends.[A Riddle in Ruby is the first book in a trilogy.]

Zero G


Dan WellsBetsy Hogg - 2018
    The journey is over a century long but luckily, everyone is in stasis, so they’ll be safe and sound asleep during the trip. Everyone that is, except for Zero, whose pod has malfunctioned, waking him up a hundred years early. His initial excitement in roaming the ship alone quickly turns to a heart-stopping interstellar adventure when a family of space pirates show up, trying to hijack the ship and take the colonizers hostage. With everyone he knows fast asleep, it’s up to Zero to think fast and find a way to stop them–all on his own.

Treasure Hunters


James Patterson - 2013
    But after their parents disappear n the job, the kids are suddenly thrust into the biggest treasure hunt of their lives. They'll have to work together to defeat dangerous pirates and dodge the hot pursuit of an evil treasure hunting rival, all while following cryptic clues to unravel the mystery of what really happened to their parents--and find out if they're still alive.

The Shadow Cipher


Laura Ruby - 2017
    Fifty-seven years later, the enigmatic architects disappeared, leaving behind for the people of New York the Old York Cipher—a puzzle laid into the shining city they constructed, at the end of which was promised a treasure beyond all imagining. By the present day, however, the puzzle has never been solved, and the greatest mystery of the modern world is little more than a tourist attraction.Tess and Theo Biedermann and their friend Jaime Cruz live in a Morningstarr apartment house—until a real estate developer announces that the city has agreed to sell him the five remaining Morningstarr buildings. Their likely destruction means the end of a dream long-held by the people of New York. And if Tess, Theo and Jaime want to save their home, they have to prove that the Old York Cipher is real. Which means they have to solve it.

The Glass Sentence


S.E. Grove - 2014
    She had no idea they were so dangerous.   Boston, 1891. Sophia Tims comes from a family of explorers and cartologers who, for generations, have been traveling and mapping the New World—a world changed by the Great Disruption of 1799, when all the continents were flung into different time periods.  Eight years ago, her parents left her with her uncle Shadrack, the foremost cartologer in Boston, and went on an urgent mission. They never returned. Life with her brilliant, absent-minded, adored uncle has taught Sophia to take care of herself. Then Shadrack is kidnapped. And Sophia, who has rarely been outside of Boston, is the only one who can search for him. Together with Theo, a refugee from the West, she travels over rough terrain and uncharted ocean, encounters pirates and traders, and relies on a combination of Shadrack’s maps, common sense, and her own slantwise powers of observation. But even as Sophia and Theo try to save Shadrack’s life, they are in danger of losing their own.The Glass Sentence plunges readers into a time and place they will not want to leave, and introduces them to a heroine and hero they will take to their hearts. It is a remarkable debut.

Remarkables


Margaret Peterson Haddix - 2019
    The next minute, the teens are gone. Like magic. Marin can’t believe her eyes. Who are they? Can anyone else see them? What makes them so happy?Marin is lonely in this new town of hers and eager to figure out more. Then she meets Charley, who reveals that he knows about them, too.He calls them the “Remarkables.” Charley warns her to stay away from the Remarkables—and him. Charley and Marin both have painful secrets they’re holding on to, but could solving the mystery of the Remarkables help them both?In addition to building an intriguing world filled with mystery, Haddix also grounds the story with real issues that many children face. Characters deal with the complexities of bullying, the guilt children experience when parents have addiction issues, and the uplifting power found in strong families of all shapes and sizes.

The Lost Planet


Rachel Searles - 2014
    This is what the boy is told:• He woke up on planet Trucon, inside a fence he shouldn't have been able to pass.• He has an annirad blaster wound to the back of his head.• He has no memory.• He is now under the protection of a mysterious benefactor.• His name is Chase Garrety.This is what Chase Garrety knows:• He has a message: "Guide the star."• Time is running out.

Heirs of the Force


Kevin J. Anderson - 1995
    While exploring the jungle outside the academy, Jacen and Jaina uncover the remains of an enemy fighter plane crashed years before in the years of the first great war.

Raiders' Ransom


Emily Diamand - 2008
    Poor Lilly is out fishing with her trusty sea-cat when greedy raiders pillage the town--and kidnap the prime minister's daughter. Her village blamed, Lilly decides to find the girl. Off she sails, in secret. And with a ransom: a mysterious talking jewel. "If I save his daughter," Lilly reasons, "the prime minister's sure to reward me." Little does Lilly know that it will take more than grit to outwit the tricky, treacherous piratical tribes!