KIDS: Mysteries
From the Mixed-Up Files of Mrs. Basil E. Frankweiler
by E. L. Konigsburg

Having run away with her younger brother to live in the Metropolitan Museum of Art, twelve-year-old Claudia strives to keep things in order in their new home and to become a changed person and a heroine to herself.
Me, Frida, and the Secret of the Peacock Ring
by Angela Cervantes

When Lizzie and Gael share an irresistible challenge, to find the peacock ring that once belonged to artist Frida Kahlo, Paloma decides it is the perfect way to honor her father.
Basil and the Cave of Cats
by Eve Titus

A rerelease of a next entry in the series that inspired the hit Disney animated film, The Great Mouse Detective, finds Basil the detective mouse embarking on a dangerous journey to India to unravel the mystery of the legendary miniature cats and their mouse king. 
Constable & Toop
by Gareth P Jones

In Victorian London, an undertaker's son who can see ghosts and is haunted by their constant demands for attention must decide whether to help when a horrible disease imprisons ghosts into empty houses in the world of the living.
When did you see her last? 
by Lemony Snicket

Young apprentice Lemony Snicket asks all the wrong questions while trying to solve a new case involving a missing girl.
Digging Up Danger
by Jacqueline West

Amateur ghost expert Eliza, thirteen, joins her botanist mother on a job in a very old flower shop, where each investigates some highly unusual things, in a story followed by a 92-page creative writing guide, Mystery creation zone, by Quinton Johnson.
The Marvels
by Brian Selznick

Two stories, one told in pictures tracing the experiences of a mid-18th-century shipwreck survivor, and a prose tale about a 1990s youth who investigates mysteries at a relative's London house, become connected in unexpected ways. By the Caldecott Award-winning creator of The Invention of Hugo Cabret.
Belly Up
by Stuart Gibbs

Twelve-year-old Teddy investigates when a popular Texas zoo's star attraction--Henry the hippopotamus--is murdered.
Nate the Great, Where Are You?
by Marjorie Weinman Sharmat

Nate the Great and his dog, Sludge, want to take a break from mystery solving, so they hide out in the woods, but even there someone still needs their help.
Winterborne Home for Vengeance and Valor
by Ally Carter

Discovering a presumed-dead billionaire hiding in the basement of Winterborne House, 12-year-old April teams up with her fellow orphans to solve a creepy riddle before the only home they have ever known is lost. 
The Goldfish Boy
by Lisa Thompson

Obsessive-compulsive teenager Matthew Corbin rarely leaves his room on a cul-de-sac in London, and passes the day observing and writing down his neighbors' doings from his window--but when a toddler staying next door disappears Matt is the key to solving a mystery.
The Westing Game
by Ellen Raskin

The mysterious death of an eccentric millionaire brings together an unlikely assortment of heirs who must uncover the circumstances of his death before they can claim their inheritance.
Ghostopolis
by Doug TenNapel

Accidentally transported to the spirit world by a washed-out ghost wrangler, Garth Hale discovers that he wields unique powers aggressively coveted by the spirits around him and teams up with his grandfather's ghost to find a way back home. 
Unstoppable Octobia May
by Sharon Flake

Growing up in her nontraditional aunt's boarding house filled with retirees, Octobia May, a 10-year-old whose heart condition has shaped her emotional intelligence, confronts mid-20th-century cultural views about young girls and the racial beliefs of her vibrant African-American community.
Bunnicula: A Rabbit-Tale of Mystery
by Deborah Howe

A pocked-sized celebration of the series' 4th anniversary complements the text of the original classic Bunnicula with bonus content and a deluxe cover. 
Masterpiece
by Elise Broach

When he finds himself involved in a case to recover a famous drawing stolen at the Metropolitan Museum of Art, 11-year-old James turns to his miniature and artistically talented friend, Marvin the beetle, for help in solving the mystery and bringing the culprit to justice. 
Warren the 13th and the All-Seeing Eye
by Tania Del Rio

When his evil aunt takes over the management of his family's hotel, 12-year-old Victorian bellhop and orphan Warren, who is convinced a treasure lies hidden somewhere on the grounds, resolves to find the treasure first to preserve his family's legacy, if the hotel's bizarre guests do not beat him to it! 
The Mysterious Benedict Society
by Trenton Lee Stewart

As the only four children to pass the series of tests provided, Reynie, Kate, Sticky, and Constance are asked to go on a secret mission as undercover agents at the Learning Institute for the Very Enlightened and quickly realize they will have to use their collective wit to get their important task complete.
Bad Magic
by Pseudonymous Bosch

Believing that magic is fake and cheesy, young Clay is shocked when he is wrongly blamed for vandalism when words from his journal magically appear on a wall at school, an occurrence that causes Clay to be sent to a camp for troubled kids on a remote volcanic island where he encounters more magic than he ever thought possible. 
The Haunted Library
by Dori Hillestad Butler

When his haunt is torn down and he is separated from his ghost family, Kaz befriends human Claire, who has the ability to see ghosts, and helps her investigate a haunting at the local library. 
Sherlock Holmes and the Disappearing Diamond
by Sam Hearn

While on a school trip to the British Arts & Antiquities Museum, John Watson and his friends from the Baker Street Academy get involved in a mystery when the Alpine Star, a famous diamond, is stolen.
Chasing Vermeer
by Blue Balliett

When strange and seemingly unrelated events start to happen and a precious Vermeer painting disappears, eleven-year-olds Petra and Calder combine their talents to solve an international art scandal.
Lulu's Mysterious Mission
by Judith Viorst

When Lulu's parents go on vacation, the formidable Ms. Sonia Sofia Solinsky comes to babysit and Lulu behaves as badly as possible to get her to leave until Ms. Solinsky reveals her secret.
Secret of the Mountain Dog
by Elizabeth Cody Kimmel

An adventure-hungry girl and an enormous Tibetan mastiff share a journey in the Catskill Mountains, where a boy and his teacher seek to reopen an abandoned monastery to find a mysterious statue. 
Detective LaRue: Letters from the Investigation
by Mark Teague

Obedience school dropout-turned-detective, Ike LaRue stands accused for a crime he did not commit involving missing cats and must race against time to prove his innocence--with hilarious results!
The Case of the Stolen Sixpence
by Holly Webb

Junior sleuth Maisie Hitchins, who lives in her grandmother's boarding house in Victorian London, uncovers an intriguing plot involving stolen sausages, pilfered halfpennies, and a fast-paced bicycle chase.
Escape from Mr. Lemoncello's Library
by Chris Grabenstein

Twelve-year-old Kyle wins a coveted spot to be one of 12 children chosen to stay in the new town library--designed by his hero, the famous gamemaker Luigi Lemoncello--for an overnight of fun, food and games, but in the morning, the kids find all the doors still locked and must work together to solve secret puzzles in order to discover the hidden escape route.
Enola Holmes: The Case of the Missing Marquess
by Nancy Springer

Enola Holmes, much younger sister of detective Sherlock Holmes, must travel to London in disguise to unravel the disappearance of her mother.
Spellbound
by Jacqueline West

Eleven-year-old Olive finds herself drawn to the grimoire of the witches who built her house and tries to use its spells to uncover the house's magic and control the cats themselves, but the book is more wicked than it seems.
Rise of Zombert
by Kara Lareau

Secretly rescuing a stray cat while helping Danny make a horror film, Mellie becomes the recipient of the cat’s gifts of headless birds and mice, while Danny harbors growing suspicions that the cat is actually a zombie. 
Smashie McPerter and the Mystery of Room 11
by N Griffin

When her class's pet hamster goes missing, Smashie and her best friend, Dontel, begin an investigation, but as chaos erupts with everyone accusing others of the theft, Smashie and Dontel are forced to the limits of their detecting skills.
The Maze of Bones
by Rick Riordan

At the reading of their grandmother's will, Dan and Amy Cahill are given the choice of receiving a million dollars or uncovering the 39 clues hidden around the world that will lead to the source of the family's power, but by taking on the clues, they end up in a dangerous race against their own family members. 
The Way to Bea
by Kat Yeh

Estranged from her best friend and weeks away from becoming a big sister, seventh grader Beatrix consoles herself by writing haiku in invisible ink and hiding the poems, and one day she is shocked to receive a mysterious reply.
The Dark Lady
by Irene Adler

Little Irene Adler meets a young William Sherlock Holmes while on summer vacation, during which time they share stories of pirates and have battles of wit while frolicking on the sunny streets and rooftops, but the good times end abruptly when a dead body floats ashore on the nearby beach and the young detectives have to put their heads together to solve the mystery.
Harriet the Spy
by Louise Fitzhugh

When she misplaces her notebook and it falls into the wrong hands, Harriet knows she is going to have a lot of explaining to do as good and bad private thoughts about her closest friends were written. Reprint.
The Harlem Charade
by Natasha Tarpley

After Elvin's grandfather is attacked, Jin, Alexandra, and Elvin band together to find out who is responsible, a search that leads them into conflict with a politician with plans to turn Harlem into an amusement park.
Explorer: The Mystery Boxes
by Kazu Kibuishi

Provides an anthology of seven short graphic works--by such artists as Kazu Kibuishi, Dave Roman and Raina Telgemeier--on the theme of a mysterious box and the marvels, or mayhem, within. 
Amulet
by Kazu Kibuishi
 
After the tragic death of their father, Emily and Navin move with their mother to the home of her deceased great-grandfather, but the strange house proves to be dangerous. Before long, a sinister creature lures the kids' mom through a door in the basement. Em and Navin, desperate not to lose her, follow her into an underground world inhabited by demons, robots, and talking animals. Eventually, they enlist the help of a small mechanical rabbit named Miskit. Together with Miskit, they face the most terrifying monster of all, and Em finally has the chance to save someone she loves.