The Bobbsey twins search for a poodle that interrupted a ballet performance and then was stolen.
While the Bobbsey twins are vacationing in Bermuda, thieves on the island search for a pirate's treasure and the twins and thieves clash after the twins innocently snap their picture
The twins and their friends set out to find another friend's hidden dune buggy and to raise money for a family in financial trouble
The twins track down the clues to their stolen pony, Cupcake, and to a stolen saddlebag that contains an object that they need to win an amateur television contest
The Bobbsey Twins search to find the culprit who is sabotaging the floats for the famous Rose Parade in Pasadena, California.
The Bobbsey twins help the members of a Camp Fire club catch the culprits who stole their bicycles.
The twins are faced with a dangerous puzzle that leads down twisting trails, as they attempt to foil an international band of thieves
The two sets of Bobbsey twins, Freddie, Flossie, Bert, and Nan, and their friend Scott investigate the theft of a valuable stamp from an exhibit in a Washington, D.C. museum
When a ghost is supposedly sighted in the school computer room, Nan and Bert Bobbsey decide to investigate
The Bobbsey twins are drawn into a mystery involving the manufacture of perfume while on a family vacation in Paris