"Engaging images accompany information about haunted houses. The combination of high-interest subject matter and light text is intended for students in grades 3 through 7"--Provided by publisher.

Provides an opportunity to study some of the world's most interesting unsolved mysteries. Reviewed From bizarre creatures on the land and sea to unsolved disappearances of ships, planes, and even cities, this series will fascinate readers of many ages. Quotes and perspectives from scientists, researchers, and historians, as well as everyday people thrown into the midst of these perplexing mysteries, provides an overall viewpoint from which children...

Frank and Joe feel that the solution to a counterfeit case and one their father is investigating is hidden in an old mill that is used for making secret parts for missiles.

Timber wolves, a rocky Mountain blizzard, and a mine cave-in are only a few of the perils Frank and Joe Hardy encounter during their search for the notorious gang responsible for a payroll robbery.

A charming old inn recently bought by Nancy Drew's friends appears to be jinxed, and Nancy finds herself involved in a dangerous mystery.

First, there is trouble in Shantytown. Then a strange craft tries to ram Frank and Joe's boat, a local bank is robbed, and two of the boys' friends disappear. In trying to relate these events, they confront kidnappers who plan to make their father choose between justice and his sons.

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

An anonymous diary is a mystery with handwriting that is difficult to decipher. It is filled with technical drawings and chemical formulas. Was the destructive explosion an accident or an act of revenge?

Hi, I'm Nancy Drew, and I've got a case to crack. Actually make that two cases. First a gorgeous Faber*g egg has been stolen. Who would have the heart to snatch such a precious family heirloom from someone new to town? Some housewarming that is! And if this isn't enough to keep me busy, someone's running through gardens and stomping on all the zucchinis. Needless to say, it's a big mess -- in more ways than one. Especially for Mr. Safer, who is suspected...

Nancy Drew travels to Peru to solve a mystery involving a long-lost treasure and a crossword clue carved into an ancient wooden plaque.