27 Amazing Mystery Books For 2nd Graders (Age 7)

As young minds continue to grow, the world of literature opens up new avenues for exploration and learning. One of the most stunning genres that can spark a child’s imagination is mystery books. With their fascinating plots and exciting adventures, mystery books have a unique way of engaging 2nd graders and encouraging their love for reading.

In this post, we will explore 27 Amazing Mystery Books For 2nd Graders.

In fact:

The mystery books mentioned in this post are based on comprehensive research and reviews and are considered some of the best Mystery Books for 2nd Graders.

Are You In a Hurry?

If you’re in a hurry, your search is over! We have selected three highly recommended mystery books.

Overview Of The 27 Amazing Mystery Books For 2nd Graders

Let’s get started…

Note: You can purchase these books by clicking on the title link. Please note that the links to purchase these books are affiliate links from Amazon.

Ants in Our P.A.N.T.S.

‘Ants in Our P.A.N.T.S.’ by John Patrick Green. Join InvestiGators Mango and RoboBrash as they dive into a new mystery. Giant ants causing chaos in the city, and it’s up to Mango and his new partner to save the day. Will they manage to stop the ants? Get ready for a fun adventure!

Be sure to check out InvestiGators Boxed Set.

The All-Star Joker

“In ‘The All-Star Joker’ by David A. Kelly, meet Mike and Kate in Kansas City. They meet Andy, whose dad is a famous player. But there’s a problem someone plays tricks and blames Andy’s dad. With Andy’s help, they want to show his dad is not the one doing it. Experience an exciting mystery that combines sports and fun in this engaging read.

Mystery Map

‘Mystery Map’ by Franklin W. Dixon. Frank and his brother Joe Hardy find a piece of a mysterious treasure map. They must unite with their friends and begin on a journey to find the missing parts of the map. Only by putting the pieces together can they unlock the secrets of the hidden treasure. As they dive into this adventure, get ready for suspense, teamwork, and a thrilling mystery!

The Wrigley Riddle

In ‘The Wrigley Riddle’ by David A. Kelly, the siblings go to Wrigley Field, where the Chicago Cubs play. Mike and Kate want to see the ivy on the walls, but it’s torn in some places. Who did it? Are they trying to bring bad luck? Follow Mike and Kate as they solve the mystery and learn about Wrigley Field.

A Monster of a Mystery

In ‘A Monster of a Mystery’ by Franklin W. Dixon, there’s a famous actor who dresses up as the Morph Monster. He comes to town for an event, and everyone, including Frank and Joe, is excited to meet him and see his special Morph Spork. But, the Spork goes missing! The event can’t continue without it. Now, Frank and Joe need to figure out where the Spork went and bring it back. Join them in this thrilling adventure where they use their detective skills to solve the mystery.

The Missing Marlin

‘The Missing Marlin’ by David A. Kelly, follows Mike and Kate. They’re in Miami, visiting Kate’s uncle, who cares for the fish there. Odd things start happening. Kate thinks she saw a sea turtle there. And some of Uncle Oliver’s fish, including his favorite, Marlin, disappear. Join the adventure as Mike and Kate work to solve the mystery.

The Disappearing Dog

In ‘The Disappearing Dog’ by Franklin W. Dixon, two brothers, Frank and Joe Hardy, meet a new kid named Max O’Malley. Max is a magician and says he can make things disappear. But Frank and Joe are unsure. Mrs. Briar’s dog, Charlie, starts disappearing and coming back strangely. People think Max is involved, but Frank and Joe want to find out the truth. Join them as they solve the mystery.

The Original Adventures of Hank the Cowdog

‘The Original Adventures of Hank the Cowdog’ by John R. Erickson. Meet Hank, a clever dog who protects the ranch. Hank and his friend work together to solve strange ranch murders. Join the adventure as Hank proves he’s not guilty and solves the mystery.

Encyclopedia Brown and the Case of the Secret Pitch

‘Encyclopedia Brown and the Case of the Secret Pitch’ by Donald J. Sobol. Meet Leroy Brown, a small detective. With his incredible knowledge, he solves mysteries for kids through his detective agency. His dad is the police chief, and they solve tricky crimes together. Get ready for mysterious adventures that challenge your detective skills!

The San Francisco Splash

‘The San Francisco Splash’ by David A. Kelly. At a baseball area in San Francisco, a baseball goes into the water. But then, A man falls in! He’s an old-time player and lost his special ring. Did it go down in the water or did someone steal it? Follow Mike and Kate as they try to solve this mystery.

The Great Coaster Caper

In ‘The Great Coaster Caper’ by Franklin W. Dixon, Frank and Joe are happy because their friend Phil is joining a contest. Phil wants to make a new ride for the amusement park. If he wins, he and two friends can go to the park for free. But there’s a problem, someone spoils Phil’s roller coaster idea. Join Frank and Joe as they solve this mystery and find the truth.

The Tiger Troubles

In ‘The Tiger Troubles’ by David A. Kelly, meet Tony, a famous player from the Detroit Tigers team. His trophy is taken by someone who wants autographed baseballs in exchange for it. Don’t worry, Mike and Kate are amazing detectives and are on the case. Will they find the thief and get the trophy back for Tony? Join the fun as they solve the mystery.

Sports Sabotage

‘Sports Sabotage’ by Franklin W. Dixon. It’s Field Day, and everyone is excited. The grade that wins gets a pizza party, and the person with the highest score gets a special prize. But trouble comes when the field equipment is damaged right before the events. It looks like Field Day might be canceled unless someone figures out who caused the chaos. Join Frank and Joe as they work together to solve the mystery and save the day!

The Haunted Mustache

In ‘The Haunted Mustache’ by Joe McGee, Wolver Hollow is a town where strange things occur. Meet Parker and Lucas, two friends who want to show that a town story isn’t real. People say a mustache, once owned by Beauregard, comes back each year to find a new owner. Parker and Lucas work to prove this isn’t true. But as they investigate, they find surprising things.

The Mystery of the Circus Clown

‘The Mystery of the Circus Clown’ by David A. Adler, Cam is a brave and smart young girl. The story revolves around a circus clown who suddenly disappears along with a valuable piece of jewelry. Cam Jansen, famous for her memory, quickly takes charge to solve the mystery. With her sharp observation skills and quick thinking, Cam follows the trail of clues and finds hidden secrets.

Nate the Great Goes Down in the Dumps

“Nate the Great Goes Down in the Dumps” by Marjorie Weinman Sharmat. Nate’s friend Rosamond can’t find her money box. Nate and Sludge try to help, but they can’t figure it out. To solve the mystery, they need to search in the dumps and get messy. Get ready for an exciting adventure as Nate and Sludge work hard to solve the mystery and find the lost money box.

The Mystery of the Monster Movie

“Cam Jansen: The Mystery of the Monster Movie” by David A. Adler. Follow the brave young detective, Cam Jansen, as she embarks on a new mystery. The story revolves around a movie being filmed in Cam’s town, where a spooky monster costume goes missing. Cam’s skills are put to the test as she dives into the investigation.

Braver and Boulder

In “Braver and Boulder” by John Patrick Green, join the InvestiGators, Mango and Brash, as they deal with a big problem. Their secret hideout is a big robot that everyone can see! Even though they want to be secret agents. They hear about Boulder Buddies. While they look into it, they find connections to their past. Get ready for lots of action and mystery in this exciting book!

Nate the Great and the Missing Key

In “Nate the Great and the Missing Key” by Marjorie Weinman Sharmat, Annie loses her house key, which means she can’t get ready for Fang’s birthday party. Even though Nate loves solving mysteries. Join Nate the Great and his loyal dog, Sludge, as they follow the clues to find the missing key and solve the mystery.

Katie Fry, Private Eye

“Katie Fry, Private Eye” by Katherine Cox. Katie Fry might be small, but she’s incredibly smart and loves solving mysteries. When she discovers a lost kitten named Sherlock, she’s determined to help. Join Katie as she follows the clues to find Sherlock’s home.

Nate the Great and the Snowy Trail

In “Nate the Great and the Snowy Trail” by Marjorie Weinman Sharmat, Nate faces a challenge. Rosamond has lost his birthday gift, but she won’t tell what it is. Nate must use his detective skills to find the missing present even without knowing what it is. Join Nate the Great on this snowy adventure as he solves the mystery.

Off the Hook

‘Off the Hook’ by John Patrick Green. Join the InvestiGators, who are super detectives, as they face a big challenge. Their old enemy, Crackerdile, comes back in a surprising new way. He’s even making a team of bad guys! Mango and Brash have to decide if they should save themselves or stop the bad guys.

Nate the Great and the Boring Beach Bag

“Nate the Great and the Boring Beach Bag” by Marjorie Weinman Sharmat. When Oliver’s bag goes missing, it’s up to Nate and Sludge to solve the case. With few clues in the sandy surroundings, they must decide which path to follow. Dive into this engaging mystery and follow along as Nate uses his detective skills to solve the case and find the truth behind the disappearing beach bag.

Heist and Seek

‘Heist and Seek’ by John Patrick Green. The InvestiGators are on the case when valuable paintings go missing from the art world. Mango and Brash put on masks as famous painters to catch the thief. They need to find the stolen artwork and save the art museum’s important event.

Once Upon a Tim

“Once Upon a Tim” by Stuart Gibbs follows the story of Tim, a boy with big dreams beyond his simple life. When Princess Grace is kidnapped by the evil, Tim takes the chance to change his future. Determined to make his dream come true, he begins on a journey of bravery and determination.

Hopping Mad

“Hopping Mad” by Franklin W. Dixon. The boys are facing a strange problem during their school talent show, frogs are falling from the sky. They need to figure out why this is happening and save the show. Join them on this funny journey as they solve the mystery and bring everything back to normal.

Nate the Great and the Halloween Hunt

In “Nate the Great and the Halloween Hunt” by Marjorie Weinman Sharmat, it’s Halloween. But Rosamond’s cat, Little Hex, is missing. Nate and his loyal dog, Sludge, are here to help solve the mystery and find Little Hex. Join them on this Halloween adventure as they follow the clues and solve the mystery.

Don’t forget to check out Nate the Great Complete Box Set for more exciting Mysteries.


We hope that our list of mystery books has given you some great options to choose from and you and your 2nd grader will have fun while exploring these mysterious books together.

The mystery books recommended in this list have been thoroughly researched and reviewed, and are considered some of the best Mystery Books For 2nd Graders. While I may not have personally read all of these books, they have been highly recommended by other readers.

We would love to hear from you about which book your 7 year old enjoyed the most, or if there is a favorite book that we missed. Please leave your comments and feedback below.

Best wishes and happy reading to you and your family!

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