Abrahams, Peter. DOWN THE RABBIT HOLE: AN ECHO FALLS MYSTERY. Like her idol, Sherlock Holmes, eighth-grader Ingrid Levin-Hill uses her intellect to solve a murder mystery in her home town of Echo Falls.
Allison, Jennifer. GILDA JOYCE: PSYCHIC INVESTIGATOR. During the summer before ninth grade, intrepid Gilda Joyce invites herself to the San Francisco mansion of distant cousin Lester Splinter and his thirteen-year-old daughter, where she uses her purported psychic abilities and detective skills to solve the mystery of the mansion's boarded-up tower.
Avi. WINDCATCHER. While learning to sail during a visit to his grandmother's at the Connecticut shore, eleven-year-old Tony becomes excited about the rumors of sunken treasure in the area and starts following a couple who seem to be making a mysterious search for something.
Balliett, Blue. CHASING VERMEER. 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.
Buckey, Sarah Masters. ENEMY IN THE FORT. In 1754, with her own parents taken captive, twelve-year-old Rebecca must confront her fear and hatred of the Abenaki when a boy raised by members of that tribe is brought to the fort at Charleston, New Hampshire, just before a series of thefts occurs.
Erickson, John R. THE ORIGINAL ADVENTURES OF HANK THE COWDOG. Hank the Cowdog, Head of Ranch Security, is framed for the murder of a chicken and becomes an outlaw.
Gorman, Carol. CHELSEY AND THE GREEN-HAIRED KID. Convinced that the fatal accident she witnessed at the basketball game was not accidental, 13-year-old Chelsey, a paraplegic, and her unusual friend Jack join forces to prove it was murder.
Hahn, Mary Downing. THE SPANISH KIDNAPPING DISASTER. Forced to accompany their parents on their honeymoon in Spain, new stepsisters Amy and Felix find the animosity between them escalating, especially when Felix's boasting about family wealth to a stranger results in the kidnapping of the girls and their little brother.
Holl, Kristi. THE HAUNTING OF CABIN 13. Camping in a park that may be haunted by the ghost of a dead girl, 13-year-old Laurie vows to get to the bottom of the mystery.
Hoobler, Dorothy and Thomas. THE GHOST IN THE TOKAIDO INN. While attempting to solve the mystery of a stolen jewel Seikei, a merchant's son who longs to be a samurai, joins a troupe of kabuki actors in 18th century Japan. Sequels: The demon in the teahouse, in darkness, death, and the sword that cut the burning grass.
Howe, Deborah and James. BUNNICULA: A RABBIT-TALE OF MYSTERY. 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.
Ibbotson, Eva. THE STAR OF KAZAN. After twelve-year-old Annika, a foundling living in 19th century Vienna, inherits a trunk of costume jewelry, a woman claiming to be her aristocratic mother arrives and takes her to live in a strangely decrepit mansion in Germany.
Keene, Carolyn. THE CROOKED BANISTER (Nancy Drew Mystery Stories, #48). While helping the police find the owner of a mysterious house with a crooked staircase and an unpredictable robot, Nancy Drew, girl detective, also helps capture a swindler.
Kehret, Peg. NIGHTMARE MOUNTAIN. Twelve-year-old Molly's visit to her aunt and uncle's llama ranch in the state of Washington leads her into unexpected danger and suspense.
Konigsburg, E.L. FROM THE MIXED-UP FILES OF MRS. BASIL E. FRANKWEILER. 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.
Raskin, Ellen. THE WESTING GAME. 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.
Stanley, Diane. THE MYSTERIOUS MATTER OF I.M. FINE. Noticing that a popular series of horror novels is having a bizarre effect on the behavior of its readers, Franny and Beamer set out to find the mysterious author.
Van Draanen, Wendelin. SAMMY KEYES AND THE SEARCH FOR SNAKE EYES. When thirteen-year-old Sammy finds herself with an abandoned baby on her hands, she sets out to find the young mother, who may belong to a gang, and accidentally jeopardizes her position on the softball team.
Warner, Gertrude Chandler. THE MYSTERY OF THE WILD PONIES. While visiting the Outer Banks of North Carolina, the Aldens see a mysterious wild horse that may be a ghost.
Zindel, Paul. THE E-MAIL MURDERS. P.C. and Mackenzie are thrilled to join Mac’s dad on a trip to Monaco, but their vacation is cut short when a serial killer, long thought to be retired, strikes in their hotel.