Eleven-year-old Chester and his classmate Skye, tasked with a complex puzzle-solving mission, discover the key to their spy assignment is to stop a heist, but cracking the code could mean finding out things are not always what they seem.

In 1929 New York City, twelve-year-old housemaid Martha O'Doyle suspects that a wealthy recluse may be trying to communicate with the outside world through the paintings on her gallery walls.

In Washington, D.C., twelve-year-old Florian Bates, a consulting detective for the FBI, and his best friend Margaret help thwart the biggest art heist in United States history.

"Channel your inner Sherlock as you puzzle over 20+ mind-twisting brain teasers in this book of clever, inference-based mysteries."-- Provided by publisher.

Twelve-year-old Randi, unhappy about moving from Brooklyn to Deer Creek, Tennessee, after her mother's death, soon finds new friends and a case to solve surrounding a stolen time capsule and rumors of a centuries-old treasure.

In ancient Egypt, the Pharaoh's pampered cat Ra and his scarab-beetle sidekick question the royal palace's animal inhabitants, solve a crime, and exonerate a servant girl falsely accused of theft.--

Carlos and his friends must uncover who is sending death threats to a wealthy eccentric or Carlos' mother may lose her business, and the reader decides which clues they will follow.--Provided by Publisher.

Twelve-year-old Teddy investigates when a popular Texas zoo's star attraction--Henry the hippopotamus--is murdered.

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.

Eighth-grader Raine, a new girl at Yielding Middle School, uses her supernatural ability to see other people's memories to solve the disappearance of a teenaged girl.

Nine-year-old Shelby Holmes, the best detective in her Harlem neighborhood, and her new easy-going friend from downstairs, eleven-year-old John Watson, become partners in a dog-napping case.

At Greenglass House, a smuggler's inn, twelve-year-old Milo, the innkeepers' adopted son, plans to spend his winter holidays relaxing but soon guests are arriving with strange stories about the house sending Milo and Meddy, the cook's daughter, on an adventure.

When his aunt is kidnapped, an eleven-year-old boy staying at San Francisco's Fairmont Hotel in 1956 tries to find her, with the help of Alfred Hitchcock.

At an English boarding school in the 1930s, crime-solving friends Hazel Wong and Daisy Wells struggle to find an exciting mystery to investigate and hit pay-dirt when Hazel discovers the dead body of Miss Bell, the science teacher.

"Seven very proper Victorian young ladies conspire to hide a murder from the authorities at their boarding school"--

Washed ashore as a baby in tiny Tupelo Landing, North Carolina, Mo LoBeau, now eleven, and her best friend Dale turn detective when the amnesiac Colonel, owner of a café and co-parent of Mo with his cook, Miss Lana, seems implicated in a murder.

Her grandfather's dying words lead thirteen-year-old Theodora Tenpenny to a valuable, hidden painting she fears may be stolen, but it is her search for answers in her Greenwich Village neighborhood that brings a real treasure.

In 1953 ten-year-old Octobia May lives in her Aunt's boarding house in the South, surrounded by an African American community which has its own secrets and internal racism, and spends her days wondering if Mr. Davenport in room 204 is really a vampire--or something else entirely.

Thirteen-year-old Lemony Snicket begins his apprenticeship with S. Theodora Markson of the secretive V.F.D. in the tiny dot of a town called Stain'd By The Sea, where he helps investigate the theft of a statue.