Franklin W Dixon

Frank and Joe manage to escape from a hostage situation with a band of smugglers, and, of course, solve another mystery.

Teenage detectives Frank and Joe Hardy investigate a case of counterfeiting.

Falsely accused of a robbery at the airport, the Hardy boys turn the tables on the real thieves by nabbing them in the act of committing another robbery.

As Frank and Joe investigate the mysterious disappearance of a college professor, they stumble upon a baffling secret in a complex network of caves.

When the Sweet Sixteen party plans of a local rich girl are overshadowed by pranksters who key her expensive car and post a video of the act on the Internet, Frank and Joe resolve to identify the culprits.

" The Hardy Boys are visiting Paris! Joe is excited to check out all the street art he's heard about. And Frank can't wait to go to all the museums he's researched. On their very first day in the city, the brothers are woken up early in the morning by fireworks. But these are no ordinary fireworks. They are a part of elaborate cover for the heist of a priceless artifact. What's worse, the theft seems to have been orchestrated by Joe's favorite street...

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, and in the process help their father solve a case involving a ring of thieves.

Frank and Joe Hardy investigate rumors of a hairy beast running through the woods of Bayport and attacking people. A close encounter with not one but three creatures makes the boys wonder if the beast is real and if it's multiplying.

"When the daughter of Bayport's amusement park owner goes missing, Joe and Frank follow clues to find the girl and determine if her disappearance is related to that of another missing person"--OCLC.

When a sinkhole opens up and swallows one of Bayport's historic statues, Frank and Joe suspect something--or someone--shady at play. They jump at the chance to investigate ; Joe as a member of an urban exploration club, and Frank as photographer for the school paper. But in the thick of their search, the boys stumble upon an entire underground city that's been abandoned for years. Now the city is home to a cultish band of criminals who plan to take...