The houses of all Three (not-so-) Little Pigs were broken into and ransacked, and the Pigs are squealing for justice. So Prince Tyrone, ruler of Fairylandia, drags in the obvious suspect: Wolfgang. The lone wolf has big teeth, sharp claws, no alibi -- and a single day to find the real culprit and clear his big bad name. When Wolf (reluctantly) teams up with the fourth Little Pig to crack the case, the Big Bad Detective Agency is born.

Jigsaw Jones investigates when his arch-nemesis, Bobby Solofsky, sets up his own ghost-busting business, thus stealing cases from Jigsaw and Mila's mystery-solving business. Part of the Jigsaw Jones series.

It's 1951, and twelve-year-old Pete Collison is a regular kid in Brooklyn, New York, who loves Sam Spade detective books and radio crime dramas. But when an FBI agent shows up at Pete's doorstep, accusing Pete's father of being a Communist, Pete is caught in a real-life mystery. Could there really be Commies in Pete's family?

When the difficult star of the reality television show "Expedition Survival" disappears while filming an episode in the Florida Everglades using animals from the wildlife refuge run by Wahoo Crane's family, Wahoo and classmate Tuna Gordon set out to find him while avoiding Tuna's gun-happy father.

Teenage James has 48 hours to rescue a kidnapped professor and to keep a powerful weapon from falling into the wrong hands. Look for others in the series.

Twelve-year-old Kyle gets to stay overnight in the new town library, designed by his hero (the famous gamemaker Luigi Lemoncello), with other students but finds that come morning he must work with friends to solve puzzles in order to escape.

After his older brother, a fledgling private detective, agrees to safeguard a package for a dwarf who does not live long, thirteen-year-old Nick scampers to solve the mystery while also trying to stay one step ahead of an assortment of thugs. First in the Diamond Brothers Mystery series.

When Miss Lana accidentally buys a haunted inn at the Tupelo Landing town auction, Desperado Detectives--aka Mo LoBeau and her best friend Dale--opens up a paranormal division to solve the ghost's identity before the town's big 250th anniversary bash. (This is the sequel to Three Times Lucky.)

On a cold winter day in Chicago, Early's father disappeared, and now she, her mother and her brother have been forced to flee their apartment and join the ranks of the homeless--and it is up to Early to hold her family together and solve the mystery surrounding her father.

In the 1920s, a ten-year-old newsgirl who aspires to be a reporter at the ChicagoTribune investigates the murder of a gangster.

Eli Frieden convinces his friends to help him investigate strange occurences in their idyllic town, and soon it becomes clear that nothing is as it seems in Serenity, New Mexico. The clues mount to reveal a shocking discovery, connecting their ideal crime-free community to some of the greatest criminal masterminds ever known. The kids realize they can trust no one—least of all their own parents.

A string of daring burglaries has taken place in BigCity, and precious lapdogs are disappearing. Who is behind this crime wave? Ottoline Brown and her best friend are on the case! Look for more Ottoline titles.

Puzzle-crazy, twelve-year-old Winston and his ten-year-old sister Katie find themselves involved in a dangerous mystery involving a hidden ring. Puzzles for the reader to solve are included throughout the text. You might also enjoy the sequel, The Potato Chip Puzzles.

Meet Nancy Drew, the most famous girl detective, in the first book of this classic mystery series. In this mystery, Nancy uses her keen mind to find a missing will.

Orphans Philippa, Sam, Thomas, and Max must find out who stole a valuable artifact in order to save to save their home, Dumfrey's Dime Museum of Freaks, Oddities, and Wonders.

Meet the world famous Hardy Boys in this first installment of the classic mystery series. In this mystery the Hardy boys make an astonishing discovery after a dying criminal confesses that his loot has been stashed "in the tower."

Seventh-grader Maggie strives to track down the disappearance of cool celebrity Seth Ryan and discover who is behind a string of dog eggings at the local dog run, while also dealing with issues involving her twin brother, and several friends. See also: Girl's Best Friend.