A series of adventures begin for the Hardy boys after they sail their-ice boat to the desolate and inhospitable Cabin Island.

Nancy investigates sabotage at the local pharmacy when two customers fall ill and a third dies.

A young girl living on an Iowa farm finds a mysterious pony's skeleton locked in an abandoned shed and tries to discover where it came from.

Encyclopedia is back with his partner, Sally Kimball. They'll have to face Bugs Meany, who's up to his old tricks, and Wilford Wiggins, who's still dreaming up new schemes to trick the kids of Idaville out of their money.

Nancy Drew becomes involved in a double mystery concerning a haunted bridge and jewel thieves.

The third-grade class at Nancy's school are learning about Chinese culture, and they'll celebrate the Chinese New Year with a special parade. The highlight of the parade will be a dragon costume. Nancy's class is making it out of feathers, sequins, gold tassels, and red silk. Right before the big day, the dragon disappears!

America's Sherlock Holmes in sneakers continues his war on crime in ten more cases, the solutions to which are found in the back of the book.

When Nancy Drew sets out to solve the mystery of a hidden family treasure for her friend Cecily Curtis at Misty Lake, she encounters strange apparitions and a haunted house

Dunkum follows a trail of secret coded messages to find his missing autographed basketball.

Henry, Jessie, Violet, and Benny find themselves right in the middle of an Iowa cornfield and a brand new mystery! The children visit a farm that's famous for its wonderful corn maze.