mystery and detective stories

While vacationing in Bermuda, the four Bobbsey twins become involved with a pair of thieves trying to steal valuable artifacts from the local museum.

The Bobbsey Twins search to find the culprit who is sabotaging the floats for the famous Rose Parade in Pasadena, California.

The Bobbsey twins try to track down a missing pony and saddelbag.

When the Bobbsey twins try to help a famous pianist who is on tour in America from his native country and who has been receiving threats against himself, the man's daughter is kidnapped.

Frank and Joe Hardy are drawn into a tangled web of danger when they are called in to investigate mysterious accidents plaguing a college football star.

When cats begin to mysteriously disappear in Santa Martina, thirteen-year-old friends Sammy and Holly start snooping around town to find out what is happening.

Nancy investigates when the special effects on a movie set are mysteriously duplicated at the old Victorian house across the street.