Book picks similar to
The Hunt for the Missing Spy by Penny Warner


middle-grade
mystery-thrillers
mystery
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The World's Greatest Chocolate-Covered Pork Chops


Ryan K. Sager - 2017
    Zoey is the best cook in town and she wants everyone to know it. She's on a mission to start her own restaurant, but quickly learns that the restaurant industry is competitive . . . and dangerous. There are people who see Zoey as a threat, and they'll use any means necessary to make sure that she fails.Featuring a precocious, larger-than-life character, lots of humor, fast-paced action and mouth-watering foods, this cooking story is sure to appeal to young foodies and fans of shows like MasterChef Junior and Rachael vs. Guy: Kids Cook-Off.

Huber Hill and the Dead Man's Treasure


B.K. Bostick - 2011
    An old gold coin and a treasure map rocket him and his friends into a mind-blowing adventure, but he's not the only one on the hunt. Filled with dangerous animals and cryptic puzzles, this book will have you on the edge of your seat until the last page.

The Goblin's Puzzle: The Adventures of a Boy With No Name and Two Girls Called Alice


Andrew S. Chilton - 2016
    All four are tangled up in a sinister plot to take over the kingdom, and together they must face kind monsters, a cruel magician, and dozens of deathly boring palace bureaucrats. They’re a ragtag bunch, but with strength, courage, and plenty of deductive reasoning, they just might outwit the villains and crack the goblin’s puzzle.

Don't Check Out This Book!


Kate Klise - 2020
    Danjerous. (Say it fast.)       Principal Noah Memree barely remembers hiring her.      Ten-year-old Reid Durr is staying up way too late reading a book from Ms. Danjerous's controversial "green dot" collection.       The new school board president has mandated a student dress code that includes white gloves and bow ties available only at her shop.  Sound strange? Fret not. Appleton's fifth-grade sleuths are following the money, embracing the punny, and determined to the get to the funniest, most rotten core of their town's juiciest scandal. Don't miss this seedy saga from the creators of the award-winning Three-Ring Rascals and 43 Old Cemetery Road series!

The Iron Trial


Holly Black - 2014
    To succeed at the Iron Trial and be admitted into the vaunted Magisterium school would bring bad things. But he fails at failing. Only hard work, loyal friends, danger, and a puppy await.

Omega City


Diana Peterfreund - 2015
    His conspiracy theories about the lost technology of Cold War–era rocket scientist Dr. Aloysius Underberg may have cost him his job and forced them to move to the middle of nowhere, but Gillian knows he's right and plans to prove it.When she discovers a missing page from Dr. Underberg's diary in her father's mess of an office, she thinks she's found a big piece of the puzzle—a space-themed riddle promising to lead to Dr. Underberg's greatest invention. Enlisting the help of her skeptical younger brother, Eric, her best friend, Savannah, and Howard, their NASA-obsessed schoolmate, Gillian sets off on a journey into the ruins of Omega City, a vast doomsday bunker deep inside the earth,.But they aren't alone inside its dark and flooded halls. For while Gillian wants to save her dad's reputation by bringing Dr. Underberg's secrets to light, there are others who will stop at nothing to make sure they stay buried . . . forever.

Once Was a Time


Leila Sales - 2016
    But when Charlotte's scientist father makes an astonishing discovery that the Germans will covet for themselves, Charlotte is faced with an impossible choice between danger and safety. Should she remain with her friend or journey to another time and place? Her split-second decision has huge consequences, and when she finds herself alone in the world, unsure of Kitty's fate, she knows that somehow, some way, she must find her way back to her friend. Written in the spirit of classic time-travel tales, this book is an imaginative and heartfelt tribute to the unbreakable ties of friendship.

The Scourge


Jennifer A. Nielsen - 2016
    She is even more surprised when the test results come back positive, and she is sent to Attic Island, a former prison turned refuge—and quarantine colony—for the ill. The Scourge’s victims, Ani now among them, can only expect to live out short, painful lives there.However, Ani quickly discovers that she doesn’t know the whole truth about the Scourge or the Colony. She’s been caught in a devious plot, and, with the help of her best friend, Weevil, Ani means to uncover just what is actually going on. But will she and Weevil survive the Scourge—and the gorvernor’s wardens—long enough to make their escape and expose the cruel plan?

Liesl & Po


Lauren Oliver - 2011
    Her only friends are the shadows and the mice,until one night a ghost appears from the darkness. It is Po, who comes from the Other Side. Both Liesl and Po are lonely, but together they are less alone. That same night, an alchemist's apprentice, Will, bungles an important delivery. He accidentally switches a box containing the most powerful magic in the world with one containing something decidedly less remarkable. Will's mistake has tremendous consequences for Liesl and Po, and it draws the three of them together on an extraordinary journey. From New York Times bestselling author Lauren Oliver comes a luminous and magnificent novel that glows with rare magic, ghostly wonders, and a true friendship that lights even the darkest of places.

Floors


Patrick Carman - 2011
    Stanley Yelnats had his holes. Leo has the wacky, amazing Whippet Hotel.The Whippet Hotel is a strange place full of strange and mysterious people. Each floor has its own quirks and secrets. Leo should know most of them - he is the maintenance man's son, after all. But a whole lot more mystery gets thrown his way when a series of cryptic boxes are left for him . . . boxes that lead him to hidden floors, strange puzzles, and unexpected alliances. Leo had better be quick on his feet, because the fate of the building he loves is at stake . . . and so is Leo's own future!

The Griffin of Darkwood


Becky Citra - 2016
    Will Poppy has always been fascinated with writing - he thinks there's something almost... magical about it. But when his mother dies, Will finds himself stuck living with his awful aunt, unable to write a single word (despite the fact that two Muses will not leave him alone) and handed a mysterious package which includes an old picture of his grandparents and a piece of cloth with the words "The Griffin of Darkwood" on it.When his aunt decides to move both of them to a small village, Will is excited for a new adventure - in a castle no less! But after a rude welcome to the town that includes stories about a curse, and an introduction to the servants of the castle who evidently mean to cause him harm, Will's sense of dread about the whole village rises.What is the curse the villagers claim has been on the castle for hundreds of years, and what does it have to do with the disappearance of a young girl forty years ago? More importantly, what's the Griffin of Darkwood, and what does it have to do with Will and his family?

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!

Miss Ellicott's School for the Magically Minded


Sage Blackwood - 2017
    But when Miss Ellicott mysteriously disappears along with all the other sorceresses in the city, Chantel’s behavior becomes the least of her problems.Without any magic protecting the city, it is up to Chantel and her friends to save the Kingdom. On a dangerous mission, Chantel will discover a crossbow-wielding boy, a dragon, and a new, fiery magic that burns inside her—but can she find the sorceresses and transform Lightning Pass into the city it was meant to be?

The Wolf Princess


Cathryn Constable - 2012
    But just like in a fairy tale, a princess comes to her rescue: the beautiful, exotic Anna Volkonskaya. Over a river of ice in a horse-drawn sleigh, she brings Sophie and her friends to a magnificent, if weathered, winter palace.At first, Sophie is enchanted by Princess Anna's stories of long-ago royalty, of white wolves and gray diamonds. But when the princess takes a particular interest in her, Sophie grows concerned. What is her place in the sinister mystery that surrounds her? Even as the wind and wolves howl outside, is she more in danger now, a prisoner of the palace, than she ever was lost in the snow?

The Bully Book


Eric Kahn Gale - 2012
    Originally self-published as an ebook by a member of Team Starkid, The Bully Book is now available in hardcover, paperback, and ebook editions. The paperback includes a Q&A with the author.Eric Haskins, the new sixth-grade bully target, is searching for answers. And unlike many of us who experienced something awful growing up, he finds them. Though they may not be what he expected.When the author was eleven, he was bullied. This book is loosely based on incidents that happened to him in sixth grade.The Bully Book is a Top Ten Indie Next List pick of 2013, and Publishers Weekly called The Bully Book a "gripping debut novel."