Mystery and Crime Solving
Here are some of our favorite mystery and crime solving books for children!  Please note that these titles can be found in the Juvenile section of the library, unless otherwise noted.
Secrets of Riverway
by Ashley Hards

Hannah has a lot on her mind. Her father--the Canola King--is missing, and no one in her small town seems to care. With the support of her best friend Sam Castillo, and their sidekick Tim the Hall Monitor, Hannah embarks on a journey to solve the mystery of her father's disappearance. Along the way, she uncovers secrets that she records in her journal, confronts challenges in school due to her ADHD, talks to a ghost, and learns the true meaning of determination and friendship.
Chimpanzee Spree
by Carolyn Keene

When someone sabotages their Chimpiñatas, which are filled with healthy snacks for the chimpanzees at the Hairy Hideaway animal sanctuary, by filling them with candy, Nancy, Bess and George must figure out who wants to make the chimps go bananas.
Mermedusa
by Thomas Taylor

To stay one step ahead of the cryptozoologists fishing around for secrets, Violet and Herbert set sail for the dangerous “Treasure Island,” where they hope to discover the heart of Eerie-on-Sea's mysteries and the truth about Violet's missing parents and Herbert's mysterious origins.
A Strange Thing Happened in Cherry Hall
by Jasmine Warga

When he encounters a floating girl who resembles the girl in a painting stolen from the museum, Rami becomes determined to solve the mystery and teams up with a classmate and a turtle named Agatha to look for the clues all around them. 
Olivetti
by Allie Millington

A part of the Brindle family, Olivetti the typewriter, who has been recently replaced by a computer, breaks the only rule of his “kind” and types back to introverted 12-year-old Ernest when he believes he can help find Mrs. Brindle, who has mysteriously gone missing. 
Sweetness All Around
by Suzanne Supplee

In 1974, almost-11-year-old Josephine moves into the Happy World trailer park where she investigates the kidnapping of her would-be next-door neighbor with the help of a colorful cast of characters with whom she forms friendships sweeter than she's ever known.
The Lost Library
by Rebecca Stead

When a mysterious Little Free Library guarded by a large orange cat appears overnight, eleven-year-old Evan plucks two weathered books from its shelves, never suspecting that his life is about to change.
Hannah Sharpe Cartoon Detective
by Janet Tashjian

Hannah Sharpe, an eleven-year-old cartoonist with autism spectrum disorder, uses her curiosity, creativity, and amazing memory to investigate her family's newest Airbnb resident.
The Absent Alpacas
by Kayla Whaley

When a group of alpacas goes missing right before the alpaca costume contest at the Maine State Fair, Abbi, her dog, Barkley, and her friends must sniff out this mystery. 
Adventure in Grand Canyon National Park: A Mystery Adventure in the National Parks
by Aaron Johnson

Jake, Amber, and Wes encounter new dangers and find their friendship tested as they follow the clues Jake's grandfather hid away in the old scrapbook. The stakes are higher, and the history goes deeper as the three kids put their heads together to solve a puzzle that is perhaps hundreds of years in the making.
The Midnight Children
by Dan Gemeinhart

Making a friend in newcomer Virginia, one of seven mysterious kids to move into his neighborhood, outcast Ravani Foster must keep Virginia safe when he learns she is in danger or lose the only person who has ever understood him.
The Friendship Feature
by Stacia Deutsch

Jessie Alden likes her new role at the student newspaper, but when a new boy at school comes to her with information about strange things taking place at his parent's business, she realizes her story is much bigger than she thought.
Theo Tan and the Fox Spirit
by Jesse Q. Sutanto

Inheriting a grieving fox spirit named Kai after his older brother Jamie dies, Theo Tan and Kai must cast aside their differences to solve the mystery surrounding Jamie's death, which is linked to a mysterious corporation.
Catastrophe
by Sherri Winston

Amateur sleuths Wednesday and her service dog Woof must employ their keen skills of detection when Mrs. Winters cat goes missing right before her big trip to Paris.
The Mystery Monster
by Amy Marie Stadelmann

Paige loves facts! She records interesting information in her facts journal and shares it with anyone who will listen, including the boy next door, Penn. When Penn thinks there's a monster in the neighborhood, Paige will prove him wrong, one fact at a time.
The In-Between
by Rebecca K. S. Ansari

Cooper is lost. Ever since his father left their family three years ago, his life has become complicated. When Cooper learns of an unsolved mystery his sister has discovered online, he welcomes the distraction. It's the tale of a deadly train crash that occurred a hundred years ago in which one young boy among the dead (and who had a strange mark on him), was never identified. With the help of the girl next door, who is familiar with the mark, he sets out to solve the mystery. 
The Case of the Nibbled Pizza
by Tadgh Bentley

When sister and brother duo Dino Detective and Awesome Possum discover Grandma Thunderclaps's pizza is missing all its pepperoni, they jump into action to find out who is to blame.
The Case of the Missing Cheetah
by Veronica Mang

It's a dark and stormy night when three sleuthing little girls get pulled into a web of mystery. They have mistakenly uncovered a secret society of some of the most famous female spies in history. A glamorous spy named Josephine Baker enlists the girls to find out who has kidnapped Chiquita, her precious pet cheetah. Do the girls have what it takes to become spies themselves?
Winterhouse
by Ben Guterson

Elizabeth, eleven, spends Christmas break at Winterhouse Hotel under strange circumstances, where she discovers that she has magic, and her love of puzzles helps her solve a mystery.
Zebra at the Zoo
by Patricia Reilly Giff

Sneaking into the local zoo through a broken fence opening, Alex revels in visits with favorite animals, including a beloved red panda, before an animal’s escape compels him to come forward.