Wallace and Grace and the Cupcake Caper

Heather Alexander - 2017
    In this charming series, kids will be treated to simple whodunit mysteries as an utterly delightful owl duo put their heads together. In this adventure, Monty the chipmunk's cupcake is stolen, and he thinks Sal the groundhog took it. If Wallace and Grace want to prove that Sal is the cupcake thief, they will need to look for clues and talk to witnesses. But what happens when the clues lead them to a cupcake thief they never expected?

The Secret of the Painted House

Marion Dane Bauer - 2007
    When her family moves from Chicago to the country, nine-year-old Emily is drawn to a mysterious playhouse she finds in the woods and soon meets its sad, lonely inhabitant.

Judy Moody's Mini-Mysteries and Other Sneaky Stuff for Super-Sleuths

Megan McDonald - 2012
    "The Great Class Heist" is just one of the whodunits tackled by Judy Drewdy and agents Dills Pickle (aka Frank), Spuds Houdini (Rocky), and James Madagascar (Stink), who need readers’ help in cracking these addition to six solve-it-yourself missions, kids can get in the mood to: Create a detective kitSketch suspectsTest powers of observationPuzzle through ridonkulus logic puzzlesWrite super-sneaky codesAnd more!

The Clue Of The Left-Handed Envelope: Ready-for-chapters

George E. Stanley
    Merlin. Mr. Merlin used to be a spy, and he knows all about secret codes and the strange and gross ways the police solve mysteries. Now there's a mystery in their very own class -- someone sent Amber Lee Johnson an anonymous letter. Noelle and Todd want to solve the mystery before anyone else. But first they have to figure out Mr. Merlin's clues. How can a bunch of envelopes tell them who sent the letter?

Mrs. Jeepers Is Missing!

Debbie Dadey - 1996
    But could Mrs. Jeepers, the third-grade teacher with green glowing fingernails and a mysterious green brooch, really turn into a vampire at her own party?

The Crazy Case of Missing Thunder

Tony Abbott - 2012
    Since first grade these friends have been solving mystery among their schoolmates etc and now their reputation is expanding.Rich kid Randall Crandall's horse, Thunder, goes missing and he calls upon the Goofballs to find him. Deciphering the clues that range from a flower delivery truck, a thunderstorm and a horse who's afraid of thunder, leads the Goofballs to recover missing Thunder, the flower-loving horse. In the meantime, they follow a trail of chomped-up flowers, disguise themselves as bushes in a florist shop and spend some time in a house that's bigger than the White House.

Arthur's Mystery Envelope

Marc Brown - 1998
    His friends try to guess what's inside. It might just be information on...summer school! Will Arthur face the consequences or pretend to lose the envelope? In chapter-book format, for children who are ready to read on their own, this mysterious adventure will surely be a hit among Arthur fans.

Babysitter's Club Collection (Books 1-4)

Ann M. Martin - 1992
    When Kristy Thomas has the great idea to form a baby-sitters club--a chance to earn money and spend time with her friends, all the while doing something they each love to do--she has no idea how much the club will change everything.See where it all began, with the first four books in the Baby-sitters Club series.Baby-Sitters Club #1: Kristy's Great Idea Baby-Sitters Club #2: Claudia and the Phantom Phone Calls Baby-Sitters Club #3: The Truth About StaceyBaby-Sitters Club #4: Mary Anne Saves the Day

Elvis & Olive

Stephanie Watson - 2008
    What begins as a game turns serious when their findings are revealed to the neighborhood, and when the girls discover unexpected things about each other. While the girls learn that it's sometimes helpful to reveal secrets, they also learn a lesson about the importance of privacy.

The Berenstain Bears in the Freaky Funhouse

Stan Berenstain - 1995
    The Bear Detectives are faced with a three-ring mystery when a carnival comes to town as part of a big charity fundraiser. Where have all the profits gone--and why is Ralph Ripoff, the town scam artist, so interested in catching the thieves?

Encyclopedia Brown Mysteries, Volume 1: Boy Detective; The Case of the Secret Pitch

Donald J. Sobol - 2003
    A cross-eyed baseball pitch...A kid-lover tumed kidnapper...A watermelon stabbing...A trapeze artist's inheritance...These are just some of the brain-twisters included. Try to crack the cases along with him--the answers to all the mysteries are found in the back!

The Riddle of the Robin

Valerie Tripp - 2016
    But one day, the robin disappears! Will the girls be able to find the robin and his secret? Animal-lover Willa is on the case!This story tells how Willa learns to take the lead and that things are not always what they seem! Includes fun activities for girls and parents to do together.

Zapato Power: Freddy Ramos Takes Off

Jacqueline Jules - 2010
    What's inside? ZAPATO POWER-shoes that change Freddie's life by giving him super speed! But what will Freddie do with his fast new skills? Weird things are happening at the Starwood Park Apartments where he lives, and his friends at school need his help. Is Freddie Ramos ready to be a hero? In this imaginative new story by Jacqueline Jules, an ordinary boy in a city neighborhood learns how to use his new-found powers for good. Illustrations by Miguel Benitez lend just a touch of comic-book style to this chapter book adventure.

Anna, Banana, and the Friendship Split

Anica Mrose Rissi - 2015
    Anna has two favorite things: her best friend, Sadie, and her dog, Banana. She can't wait to celebrate her birthday with both of them.But Anna's birthday party turns into a birthday disaster when Sadie starts a terrible fight that Anna never saw coming. Anna doesn't know why her best friend is suddenly acting like her worst enemy, but she knows she'd do anything to fix it. She and Banana just need to come up with a plan.Only, what if Sadie doesn't want their friendship to be fixed?

Thea Stilton and the Niagara Splash (Thea Stilton #27): A Geronimo Stilton Adventure

Thea Stilton - 2014
    The girls are enjoying learning more about Canada and their love for hockey. But during their trip, one of their group members mysteriously disappears. They set off to Niagara Falls to find him. Can they solve the mystery?