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 themystery of the mansion's boarded-up tower.
Becky and her brother use some ingenious clues to identify the person who stole five children's books from the town's library
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.
When a quilt containing America's secrets is stolen and he is falsely accused of the crime, Steve Brixton must use all the skills he has gleaned from reading detective novels to solve the mystery and find the real culprits in order to restore his good name.
Small vials of smelly ingredients, the diaries of a dead magician, and a secret story about immortality have two less-than-sociable kids on the hunt to solve a strange mystery, in a challenging middle reader filled with word-games, anagrams, and black-and-white illustrations throughout. 1,000,000 first printing.
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. Jr Lib Guild.
While running a spy network from their elementary school, five unpopular misfits combine their enhanced abilities and use cutting-edge gadgetry to fight evil around the world.
While searching for his lost human family, Buddy the dog is adopted by another family and -- with the help of a large dog named Mouse and a mysterious cat with no name -- solves the mystery of his new family's missing boy Connor.
In his very small town of Hamilton, Nebraska, fifth-grader Ted Hammond looks for a connection between the dying town's dwindling school numbers and the face in the window of the empty Anderson house. 100,000 first printing.
<p>J.J. Tully is a former search-and rescue dog who is trying to enjoy his retirement after years of performing daring missions saving lives. So he’s not terribly impressed when two chicks named Dirt and Sugar (who look like popcorn on legs) and their chicken mom show up demanding his help to track down their missing siblings. Driven by the promise of a cheeseburger, J.J. begins to track down clues. Is Vince the Funnel hiding something? Are there dark forces at work—or is J.J. not smelling the evidence that’s right in front of him?</p><p>Bestselling author Doreen Cronin uses her deadpan humor to pitch-perfect effect in her first novel for young readers. Heavily illustrated with black-and-white artwork from Kevin Cornell, this new series is destined to become a classic.</p>
When Salim doesn't come back from his ride on the London Eye, his cousins Ted and Kat turn to the authorities for help, but when they offer no viable suggestions, the two use their sleuthing skills to figure out what actually happened.
Eleven-year-old Harriet keeps notes on her classmates and neighbors in a secret notebook, but when some of the students read the notebook, they seek revenge.
A sixteen-year-old boy arranges a housesitting job for the summer, but he starts acting strangely after his family moves in, and his sister begins to suspect they are not supposed to be there.
When fellow fourth grader Shirley Chameleon asks Chet Gecko to find her missing brother Billy, Chet follows a mysterious trail of clues that includes the Rat Sisters, a riddling junkyard dog, and a vicious Gila monster named Herman. Reprint. 25,000 first printing.
Roy, who is new to his small Florida community, becomes involved in another boy's attempt to save a colony of burrowing owls from a proposed construction site.
A hilarious tale of cross purposes is told in a series of letters between a no-nonsense suburban school principal and an especially creative designer of drinking fountains who dreams of building the grandest fountain ever.
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
Idaville's secret weapon against lawbreakers, ten-year-old Leroy "Encyclopedia" Brown, helps the police force solve ten new cases, the solutions to which are found in the back of the book.
Enola Holmes, much younger sister of detective Sherlock Holmes, must travel to London in disguise to unravel the disappearance of her missing mother.
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.
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
Because they do not want to be separated, four orphaned children run away and live in an old abandoned boxcar
Through a series of letters to his parents, Little Wolf relates his adventures as a member of Yelloweyes Forest Detective Agency, crime solvers of the Frettnin Forest, as they investigate a series of mysterious disappearances.