9 middle grade mystery books you should definitely investigate

The books below are our recommendations for middle grade mystery lovers ! If you decide to purchase them online, we recommend Bookshop.org because they support local bookstores and authors ❤️. Also, we earn a few cents if you use our links!

Blood in the Water

Brooklyn girl Kaylani McKinnon feels like a fish out of water. She's spending the summer with family friends in their huge house on Martha's Vineyard, and the vibe is definitely snooty. Still, there are beautiful beaches, lots of ice cream, and a town full of fascinating Black history. Plus a few kids her age who seem friendly.

Until the shocking death of a popular teenage boy rocks the community to its core. Was it a drowning? A shark attack? Or the unthinkable--murder?

Kaylani is determined to solve the mystery. But her investigation leads her to uncover shocking secrets that could change her own life as she knows it... if she survives.

The Misfits: A Royal Conundrum

Olive Cobin Zang has . . . issues. And they mostly aren’t her fault. (No, really!) Though she often slips under the radar, problems have a knack for finding her. So, imagine her doubts when she’s suddenly dropped off at the strangest boarding school ever: a former castle turned prison that's now a “reforming arts school”!

But nothing could’ve prepared Olive for RASCH (not “rash”). There, she’s lumped with a team of other kids who never quite fit in, and discovers that the academy isn’t what it seems—and neither is she. In fact, RASCH is a cover for an elite group of misfits who fight crime . . . and Olive has arrived just in time.

Turns out that RASCH is in danger of closing, unless Olive’s class can stop the heist of the century. And as Olive falls in love with this wacky school, she realizes it’s up to her new team to save the only home that’s ever welcomed them.

We also have a printable novel study based on this book that can be purchased here!

Kingston and the Magician’s Lost and Found

Twelve-year-old Kingston has just moved from the suburbs back to Echo City, Brooklyn—the last place his father was seen alive. Kingston's father was King Preston, one of the world's greatest magicians. Until one trick went wrong and he disappeared. Now that Kingston is back in Echo City, he's determined to find his father.

Somehow, though, when his father disappeared, he took all of Echo City's magic with him. Now Echo City—a ghost of its past—is living up to its name. With no magic left, the magicians have packed up and left town and those who've stayed behind don't look too kindly on any who reminds them of what they once had.

When Kingston finds a magic box his father left behind as a clue, Kingston knows there's more to his father's disappearance than meets the eye. He'll have to keep it a secret—that is, until he can restore magic to Echo City. With his cousin Veronica and childhood friend Too Tall Eddie, Kingston works to solve the clues, but one wrong move and his father might not be the only one who goes missing.

Clubhouse Mysteries: The Buried Bones Mystery

Ziggy and his friends Rico, Rashawn, and Jerome build a clubhouse in Ziggy’s backyard and decide to bury their secret treasures nearby. But when the boys start digging, they uncover a box of bones and are swept up in a mystery more intriguing—and scary—than anything they could have imagined. Who could have buried a box of bones behind their clubhouse?

Zeyna Lost and Found

In 1970, twelve-year-old Zeyna has grown up in London but has never quite felt like she fits in.

Her monotonous life is suddenly interrupted when Zeyna's parents decide to visit their native Pakistan--where Zeyna feels she doesn't fit in either. But then her parents disappear, leaving behind a string of clues that connect them to an international jewel heist. Along with her annoying little brother and her clever Pakistani cousin, Zeyna sets out to find her parents and clear their names. Along the way, she discovers that being shaped by two cultures doesn't have to mean she's always an outsider.

Find Her

In dreams, Wren can see her again: her eyes, her hair, her smile. She can even hear her laugh. Her mother, one of hundreds of Native Americans considered missing or murdered in Oklahoma. Sometimes it seems like Wren and her grandmother are the only people still looking. Even more frustrating, Wren's overprotective father won't talk about it.

Wren refuses to give up, though. And an opportunity to find lost pets seems like a real way to hone her detective skills. But everything changes when one of the missing pets is found badly hurt. Soon, there are others. 

With help from an unlikely friend, Wren vows to unmask whoever is behind the animal abuse. If she can do this, maybe she can do the same for her mother's case. She'll just have to keep it secret from her father who will certainly put an end to all her sleuthing if he finds out. 

Find Her explores the crisis of missing Indigenous women from the perspective of a sensitive young Cherokee girl who yearns to find her mother, while also navigating a chilling town mystery, a new friendship, and a family in need of healing.

The Cookie Crumbles

Laila gave Lucy a cupcake on the second day of kindergarten, and they've been inseparable ever since. But the summer before eighth grade, they find out that since they live on opposite sides of town, they’ll go to different high schools. Yuck!

Then Laila’s invited to compete at the Golden Cookie competition, which awards its winner admission and a full ride to the prestigious Sunderland boarding school, and it’s the perfect opportunity. Sunderland doesn’t just have an elite culinary program; it’s also home to an elite journalism track, if only newscaster-hopeful Lucy could build up a strong enough portfolio to impress the scholarship committee.

But when one of the celebrity judges collapses after sampling Laila’s showpiece, rumors of foul play swirl, with Laila rising to the top of the suspect list. Even worse, a major storm has effectively cut off all access to the outside world.

Can the girls find the real culprit and clear Laila’s name before it’s too late?

Speculation

After Winna's little sister breaks her glasses, her grandfather gives her an old-timey pair of spectacles that belonged to her great-aunt Estelle. The specs are silver and perfectly circular, with tiny stars on the bridge and earpieces that curl all the way around her ears.

Best of all, they're magic.

Because when Winna makes a wish beginning with the words "What if"--that is, when she speculates--the spectacles grant it. Winna wishes she could see ghosts ... and soon she meets not only the real Estelle, but Estelle's mother, Winona. Nearly a century before, Winona escaped from slavery and ran north with her baby, Key. But Key was stolen from her under mysterious circumstances, and now Estelle and Winona have a mission for Winna: Find Key.

He's still alive. He doesn't know the whole truth. And unless Winna can solve the mystery and bring him home, a powerful curse called the Burden will smother out their family's lives--and Winna's mom could be its next victim.

The Misfits: A Copycat Conundrum (Sequel)

Oof! After solving the case of the Royal Rumpus, Olive Cobin Zang and her elite team of underdogs are on top of the world. As the awkward, crime-fighting Misfits, they’re acing every mission thrown at them from NOCK (aka No One Can Know, the covert agency they work for).

But when their classmate Zeke starts receiving threatening notes, the Misfits are stumped. They’re no strangers to danger, but this case is a total head-scratcher. Who would target kind, friendly Zeke . . . unless he’s not what he seems to be?

At the same time, unusual earthquakes start shaking up San Francisco just as priceless art goes missing, and the Misfits are called to investigate. Is it a coincidence that the city is under attack while Zeke is getting mysterious messages? Or is it all just a cover for a scheme bigger than any they’ve faced before?

Looking for more? Check out more of our book recommendations and our printable novel studies!