Nate the Great solves the mystery of the missing picture.

A tragic chain of events threatens a 14-year-old girl's promising tennis career.

Nate the Great investigates the disappearance of a homemade pillowcase belonging to Rosamond's cat Big Hex. Includes extra fun activities!

Though Rob saw Mrs. Calloway fall to he death, he wants to believe that it was an accident. He wants to pretend he didn't see the hands that pushed her out of the window. Then a flowerpot almost fall on him. And three bullets just miss him. And someone tries to poison his food. When Rob tries to tell his family that he thinks there has been a murder, they're to busywith his sister's wedding to care. Could Rob be the killer's next victim?

Teenage detective Nancy Drew finds herself in danger when she sets out to track a jewel thief.

Tracy, a high school junior, becomes embroiled in the problems of a strange boy, who asks her assistance in "snatching" his half-sister from her father who has allegedly kidnapped her.

While Frank and Joe help their father locate a notorious jewel thief, they also explore the mysterious death of a tycoon's nephew years before.

While visiting Dink's uncle in New York City, Dink, Josh, and Ruth Rose help uncover who is responsible for stealing a very valuable painting.

Encyclopedia Brown, boy detective extraordinaire, solves ten new cases, including "The Case of the Miracle Pill, " "The Case of Nemo's Tuba, " "The Case of the Lawn Mower Races, " and "The Case of the Air Guitar." Solutions provided at the end of each chapter.

When princesses from some of the most splendid kingdoms of the world gather at summer camp, a special bond forms between the girls of the South Turret and aids them in laying to rest a mystery while working to complete a long-lost tapestry.