Rob admits having seen a murder, but no one believes him--except the murderer.

A young Canadian visitor helps the Alden family solve a mystery involving a lost coin collection.

When they help out at a guide dog training school, the Alden children meet several people who seem obsessed with a particular dog named Ginger.

Six high school friends are bound together by a sinister letter passing through their lives by e-mails and texts.

Fairy-tale detectives Sabrina and Daphne Grimm face their first case without Granny Relda's help when the future gets mixed up with the past in Ferryport Landing, and because some of the future does not look bright, Puck helps them try to make some changes.

Even though Abby, the club president, is out of town, Stacy and the rest of the Cul-de-sac Kids vote to have a yard sale to raise money to buy flags for Flag Day.

The Alden children have another mystery to solve when they visit a castle and must figure out which of the guests has stolen the Stradivarius violin.

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.

High school loser Tom Henderson discovers that "The Catcher in the Rye" may hold the clues to the many mysteries in his life.

Attending Debbie's birthday party at the zoo, twin sleuths Kate and Mickey investigate the mysterious disappearance of her presents.