39 Clues by Various authors

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 Case of the Missing Marquess: an Enola Holmes Mystery by Nancy Springer

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

Mysterious Case of the Allbright Academy by Diane Stanley

Eighth-grader Franny and her friends investigate why most of the students at their exclusive boarding school are brilliant, beautiful, and perfectly behaved.

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.

Potato Chip Puzzles by Eric Berlin

Winston and his friends enter an all-day puzzle contest to win fifty-thousand dollars for their school, but they must also figure out who is trying to keep them from winning. Puzzles for the reader to solve are included throughout the text.

Chasing Vermeer by Blue Balliet

When seemingly unrelated and strange 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.

I,Q by Roland Smith

Teenagers Q (Quest) and Angela go on tour with married rockers Blaze and Roger and, while in Philadelphia, become submerged in a world of danger when they discover the identity of Angela’s real mother, who is a former Secret Service agent.

London Eye Mystery by Siobhan Dowd

When Ted and Kat’s cousin Salim disappears from the London Eye ferris wheel, the two siblings must work together-Ted with his brain that is “wired differently” and impatient Kat-to try to solve the mystery of what happened to Salim.

Mr. Chickee’s Funny Money by Christopher Paul Curtis

Flint Future Detective Club members Steven Carter, his friend Russell, and Russell’s huge dog Zoopy solve the mystery of a quadrillion-dollar bill with the image of James Brown on it.

Half Moon Investigations by Eoin Colfer

Twleve-year-old private investigator Fletcher Moon, nicknamed “Half Moon” because of his shortness, must track down a conspiracy or be framed for a crime he did not commit.

The House With a Clock In Its Walls by John Bellairs

A boy goes to live with his magician uncle in a mansion that has a clock hidden in the walls which is ticking off the minutes until doomsday.

The Secret of Zoom by Lynne Jonell

Ten-year-old Christina lives a sheltered life until she discovers a secret tunnel, an evil plot to enslave orphans, and a mysterious source of energy known as zoom.

The Mysterious Benedict Society by Trenton Lee Stewart

After passing a series of mind-bending tests, four children are selected for a secret mission that requires them to go undercover at the Learning Institute for the Very Enlightened, where the only rule is that there are no rules.

The Name of This Book Is Secret by Pseudonymous Bosch

Two eleven-year-old misfits try to solve the mystery of a dead magician and stop the evil Dr. L and Ms. Mauvais, who are searching for the secret of immortality.

Hank the Cowdog Series by John Erickson

In book one, Hank the Cowdog, Head of Ranch Security, is framed for the murder of a chicken and becomes an outlaw with the coyotes.

Chet Gecko Series by Bruce Hale

In book one, when hired by a fellow fourth-grader to find her missing brother, Chet Gecko uncovers a plot involving a Gila monster’s revenge upon the school football team.

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.

 A to Z Mysteries Series by Ron Roy

In book one, The Absent Author, Dink Duncan and his two friends investigate the apparent kidnapping of famous mystery author Wallis Wallace.

 History Mysteries Series by Various Authors

Book one, is Smuggler’s Treasure.  Sent to live with relatives in New Orleans during the War of 1812, eleven-year-old Elisabet determines to find a smuggler’s treasure to ransom her imprisoned father.

Scat by Carl Hiassen

Nick and his friend Marta decide to investigate when a mysterious fire starts near a Florida wildlife preserve and an unpopular teacher goes missing.

 When You Reach Me by Rebecca Stead

As her mother prepares to be a contestant on the 1980s television game show, “The $20,000 Pyramid,” a twelve-year-old New York City girl tries to make sense of a series of mysterious notes received from an anonymous source that seems to defy the laws of time and space.

Bunnicula by Deborah Howe

Though scoffed at by Harold the dog, Chester the cat tries to warn his human family that their foundling baby bunny must be a vampire.

Skeleton Creek by Patrick Carman

Although housebound following an eerie accident, teenaged Ryan continues to investigate the strange occurrences in his hometown of Skeleton Creek, recording his findings in a journal and viewing e-mail video clips sent by fellow detective Sarah. The reader may view Sarah’s videos on a website by using links and passwords found in the text.

 Shakespeare’s Secret by Elise Broach

Named after a character in a Shakespeare play, misfit sixth-grader Hero becomes interested in exploring this unusual connection because of a valuable diamond supposedly hidden in her new house, an intriguing neighbor, and the unexpected attention of the most popular boy in school.

 Clues in the Woods by Peggy Parish

Missing garbage scraps, a red sweater found in the woods, and a trapped puppy lead three children, staying with their grandparents, to think someone needs help.

 Danger in the Dark by Tom Lalicki

Thirteen-year-old Nathaniel, aided by the famous magician Harry Houdini, plots to unmask a phony spirit advisor attempting to relieve the boy’s great-aunt of her fortune.

Barnaby Grimes: Curse of the Night Wolf by Paul Stewart

Soon after Victorian messenger Barnaby Grimes is attacked by a huge beast while crossing London’s rooftops, he becomes entangled in a mystery involving patent medicine, impoverished patients, and very expensive furs.