Encyclopedia Brown, Boy Detective by Donald J. Sobol: Join Encyclopedia Brown as he uses his famous computer-like brain to solve mind-twisting mysteries.
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.
Nate the Great by Marjorie Weinman Sharmat: Nate the Great must help his friend Annie find her missing picture by asking questions, evaluating the clues and narrowing down the list of suspects.
Sammy Keyes and the Hotel Thief by Wendelin Van Draanen: Thirteen-year-old Sammy’s penchant for speaking her mind gets her in trouble when she involves herself in the investigation of a robbery at the “seedy” hotel across the street from the seniors’ building where she is living with her grandmother.
Fairy-tale Detectives by Michael Buckley: After their parents mysteriously disappear, Sabrina and Daphne Grimm are sent to live with their grandmother where they discover that they are related to the famous Brothers Grimm. The fairy tales written by the Brothers Grimm turn out to be case files that the sisters use to follow in the footsteps of their ancestors and become fairy-tale detectives.
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.
Timmy Failure: Mistakes Were Made by Stephan Pastis: Resolving to earn so much money that his mother will no longer stress out over the bills, eleven-year-old Timmy Failure launches a detective business with a lazy polar bear partner named Total but finds their enterprise “Total Failure, Inc.” challenged by a college-bound spy and a four-foot-tall girl whom Timmy refuses to acknowledge.
Nancy Drew: The Secret of the Old Clock by Carolyn Keene: Nancy is resourceful and kind as she takes on the challenge of locating the true will of Josiah Crowley.
Gilda Joyce: Psychic Investigator by Jennifer Allison: 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.
Chasing Vermeer by Blue Balliett: 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.