Book picks similar to
Under Locker and Key by Allison K. Hymas


middle-grade
mystery
realistic-fiction
action-adventure

Lunch Lady and the Cyborg Substitute


Jarrett J. Krosoczka - 2009
    . . and lunch!Hector, Terrence, and Dee have always wondered about their school lunch lady. What does she do when she isn’t dishing out the daily special? Where does she live? Does she have a lot of cats at home? Little do they know, Lunch Lady doesn’t just serve sloppy joes—she serves justice! Whatever danger lies ahead, it’s no match for LUNCH LADY!

Love, Ruby Lavender


Deborah Wiles - 2001
    What other granddaughter-grandmother duo could successfully drive the getaway car for chickens rescued from a journey to the slaughterhouse, paint a whole house shocking pink, and operate their own personal secret-letter post office? So, when Miss Eula leaves for Hawaii to visit her new grandbaby, Ruby is sure that she will have a lonely, empty, horrible summer in boring old Halleluia, Mississippi. What happens instead? She makes a new friend, saves the school play, writes plenty of letters to her favorite (and only) grandmother...and finally learns to stop blaming herself for her grandfather's death. Not too bad, for a nine-year-old.

Julia Gillian


Alison McGhee - 2008
    Ten-year-old Julia Gillian knows everything about her quirky neighbors, her Minneapolis neighborhood, even the inscrutable "claw machine" in the back of the corner hardware store. The one thing Julia Gillian doesn't know is how the book she's reading is going to end. It doesn't seem as if it's going to have a happy ending, and that scares her. But Julia learns a little something about fear: sometimes you just have to work through it. And though bad things do happen sometimes, having good friends and family around you makes life a bit less scary - and much more fun.

Knightley & Son


Rohan Gavin - 2014
    While he was out cold, his son, Darkus, took it upon himself to read of all his dad's old cases, and he's learned a lot about the art of detection. It's a good thing too—because suddenly the duo find themselves caught up in a crazy conspiracy that involves a group of villainous masterminds (who keep appearing and then vanishing), some high-speed car chases (that will have everyone fastening their seat belts), and a national, bestselling book with the power to make people do terrible, terrible things. But because Alan is still suffering the effects of his coma, he tends to, well, fall asleep at the worst possible moments, Meaning that young Darkus might just have to solve this mystery . . . by himself.

Frank Einstein and the Antimatter Motor


Jon Scieszka - 2014
    After an uneventful experiment in his garage-lab, a lightning storm and flash of electricity bring Frank’s inventions—the robots Klink and Klank—to life! Not exactly the ideal lab partners, the wisecracking Klink and the overly expressive Klank nonetheless help Frank attempt to perfect his Antimatter Motor . . . until Frank’s archnemesis, T. Edison, steals Klink and Klank for his evil doomsday plan!

Counting Thyme


Melanie Conklin - 2016
    But it also means the Owens family has to move to New York, thousands of miles away from Thyme’s best friend and everything she knows and loves. The island of Manhattan doesn’t exactly inspire new beginnings, but Thyme tries to embrace the change for what it is: temporary.After Val’s treatment shows real promise and Mr. Owens accepts a full-time position in the city, Thyme has to face the frightening possibility that the move to New York is permanent. Thyme loves her brother, and knows the trial could save his life—she’d give anything for him to be well—but she still wants to go home, although the guilt of not wanting to stay is agonizing. She finds herself even more mixed up when her heart feels the tug of new friends, a first crush, and even a crotchety neighbor and his sweet whistling bird. All Thyme can do is count the minutes, the hours, and days, and hope time can bring both a miracle for Val and a way back home.

The Unforgettable Guinevere St. Clair


Amy Makechnie - 2018
    Clair is going to be a lawyer. She was the fastest girl in New York City. She knows everything there is to know about the brain. And now that she’s living in Crow, Iowa, she wants to ride into her first day of school on a cow named Willowdale Princess Deon Dawn. But Gwyn isn’t in Crow, Iowa, just for royal cows. Her family has moved there, where her parents grew up, in the hopes of jogging her mother Vienna’s memory. Vienna has been suffering from memory loss since Gwyn was four. She can no longer remember anything past the age of thirteen, not even that she has two young daughters. Gwyn’s father is obsessed with finding out everything he can to help his wife, but Gwyn’s focused on problems that seem a little more within her reach. Like proving that the very strange Gaysie Cutter who lives next door is behind the disappearance of her only friend, Wilbur Truesdale. Gwyn is sure she can crack the case, but when she does she finds that not all of her investigations lead her to the places she would have expected. In fact they might just lead her to learn about the mother she’s been doing her best to forget.

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.

Stormbreaker


Anthony Horowitz - 2000
    He wasn't wearing his seatbelt, they said. But when fourteen-year-old Alex finds his uncle's windshield riddled with bullet holes, he knows it was no accident. What he doesn't know yet is that his uncle was killed while on a top-secret mission. But he is about to, and once he does, there is no turning back. Finding himself in the middle of terrorists, Alex must outsmart the people who want him dead. The government has given him the technology, but only he can provide the courage. Should he fail, every child in England will be murdered in cold blood.

Sammy Keyes and the Hotel Thief


Wendelin Van Draanen - 1998
    Now Sammy's witnessed a crime at the Heavenly Hotel-a light fingered thief stealing $4,000 from Madame Nashira, the astrologer with the fire-hazard hair-do. Thing is, while she was watching him, he was watching her, too...Fast-paced and funny, packed with menacing suspects and clever clues, the Sammy Keyes mysteries keep you guessing to the last riveting page.

The Van Gogh Deception


Deron R. Hicks - 2017
    As the stakes continue to rise, the boy must piece together the disjointed clues of his origins while using his limited knowledge to stop one of the greatest art frauds ever attempted. Digitally interactive, this museum mystery offers QR codes woven throughout the book that bring renowned paintings to readers’ fingertips.

My Life as a Book


Janet Tashjian - 2010
    But when his parents decide to send him to Learning Camp, Derek's dreams of fun come to an end. Ever since he's been labeled a "reluctant reader," his mom has pushed him to read "real" books-something other than his beloved Calvin & Hobbes. As Derek forges unexpected friendships and uncovers a family secret involving himself (in diapers! no less), he realizes that adventures and surprises are around the corner, complete with curve balls. My Life as a Book is a 2011 Bank Street - Best Children's Book of the Year.

So B. It


Sarah Weeks - 2000
    In fact, everything about Heidi and her mentally disabled mother's past is a mystery. When a strange word in her mother's vocabulary begins to haunt her, Heidi sets out on a cross-country journey in search of the secrets of her past.Far away from home, pieces of her puzzling history come together. But it isn't until she learns to accept not knowing that Heidi truly arrives.

Double Vision


Fleur T. Bradley - 2012
    T. Bradley.In the trilogy opener, twelve-year-old Lincoln Baker finds himself in a world of trouble! First, Linc’s seemingly harmless prank on a school field trip ends in expulsion and a lawsuit. Then two mysterious figures from a secret government agency called Pandora show up at Linc’s house with a proposition for him.Turns out Linc looks exactly like one of Pandora’s top kid agents, Benjamin Green, who vanished while on a critical spy mission in Paris. If Linc agrees to take his place, they’ll get him back in school and make that costly lawsuit disappear.But the mission is a lot more complicated than it seems. A highly valuable copy of the Mona Lisa has gone missing and now Linc must make sure it doesn’t fall into the wrong hands. Too bad Linc isn’t a black belt math genius who can run a four-minute mile like his double, Ben, because he’ll need those skills to make it out alive. . . .

Our Castle by the Sea


Lucy Strange - 2019
    Lucy Strange takes a seafaring myth and grounds it in the stark reality of World War II.Growing up in a lighthouse, 11-year-old Pet's world has been one of storms, secret tunnels, and stories about sea monsters. But now the country is at war and the clifftops are a terrifying battleground. Pet will need to muster all her bravery to uncover why her family is being torn apart. This is the story of a girl who is afraid and unnoticed. A girl who freezes with fear at the enemy planes ripping through the skies overheard. A girl who is somehow destined to become part of the strange, ancient legend of the Daughters of Stone.