Their SOS ignored in a storm, the Hardy boys find a wallet containing two thousand dollars alongside their boat and are launched into a mystery involving diverse clues.

The eighteen-year-old girl detective must find a man who has been missing for years in order to locate the other half of a treasure map.

Frank and Joe uncover a plot to steal a vital top-secret instrument of the space program.

A chance meeting with a stranger on the road provides the Hardy brothers with a clue to a gang of local burglars.

"What will the Aldens discover on a vacation to a deserted island? Adapted from Gertrude Chandler Warner's story of the same name, this early reader allows children to start reading with a Boxcar Children classic."--

Sabina and Daphne Grimm enter the hideout of the Scarlet Hand in order to rescue their parents who had been kidnapped a year before, but their attempts are thwarted by the most famous fairy tale character in the world.

Orphaned brothers Prosper and Bo, having run away from their cruel aunt and uncle, decide to hide out in Venice where they fall in with the Thief Lord, a thirteen-year-old boy who leads a crime ring of street children.

Summer vacation on an almost private island gives the Aldens a challenge. Henry, Jessie, Violet and Benny used to live alone in a boxcar. Now they have a home with their grandfather and are spending the summer on their own private island. There is a mysterious stranger on the island with a secret--but that's not the only surprise in store for the Boxcar Children.

Frank and Joe solve a mystery involving a missing man, an abandoned airplane, and giants in the desert.

Frank and Joe unravel two mysteries, one involving a counterfeiting case and the other concerned with a national security case their father is working on.