Nancy Drew's latest involvement in a mystery begins in her home town and concerns a synthetic sapphire with a spider embedded in it, and the strange disappearance of Ned Nickerson.

The Hardy boys go to the Pocono Mountains to help a friend of their father find out what is behind the mysterious happenings at Black Hollow. In the process they help their father solve a case involving a ring of thieves.

When the children uncover a strange puzzle in a friend's back yard, it's the start of a "spy game" leading to gold. But first they must make sense of an old photo and a riddle, and learn just who is behind this mystery within a mystery.

When the Hardy Boys set out to solve the mystery of their missing chums, they discover a gang hide-out in a cave on an island along the way.

Someone is trying to put Aunt Jane's motel out of business, but the Alden children aren't going to let that happen.

At a doll collector's request for help, a young sleuth searches for an old album, a lost doll, and a missing gypsy violinist.

The Alden children investigate various mix-ups at a zoo run by their grandfather's friend in an effort to save it not only from pranksters but also from the town council.

When their grandfather arranges for them to spend two week at Sunny Oaks, the four Alden children enjoy settling into the routines of farm life but become suspicious about a mysterious horse locked in the stables.

Nancy races against time to unravel the clues in a dead man's letters. If she succeeds, Philip March and his little granddaughter can be saved from financial ruin. It takes courage and ingenuity for the alert young detective to discover the significance of the skeleton with the upraised arm and to find the source of the spooky sounds of music in the old attic.

A Newbery Medal Winner For over thirty-five years, Ellen Raskin's Newbery Medal-winning The Westing Game has been an enduring favorite. This highly inventive mystery involves sixteen people who are invited to the reading of Samuel W. Westing's will. They could become millionaires-it all depends on how they play the tricky and dangerous Westing game, a game involving blizzards, burglaries, and bombings! Ellen Raskin has created a remarkable cast of...