"Now with a brand-new look, this is an edition that collectors won't want to miss! In The Secret of the Caves, the seventh book in the incredibly popular, long-running series, Frank and Joe Hardy discover the secret of the Honeycomb Caves while searching for a missing professor. A special treat for Hardy Boys fans and any reader who's new to the series!"--

After a dying criminal confesses that his loot has been stashed "in the tower", the Hardy boys make an astonishing discovery.

When Frank and Joe join the cast of a new reality show, things starts to go wrong when one of the twelve contestants receives a death threat.

When teen movie-star Justin Carraway's twin brother disappears, Joe and Frank Hardy decide to investigate.

While teen superstar Justin Carraway shoots his latest movie in Bayport, Frank and Joe attempt to discover the identity of the stalker who is sending the actor threatening letters before anyone gets hurt.

The Hardy Boys go undercover to find out about the dangerous secret society at the exclusive private school Willis Firth Academy in New England.

While investigating the disappearance of eight children from Misty Falls State Park in Idaho, Frank goes missing in the woods, compelling Joe to prevent his brother from becoming the latest lost victim.

Frank and Joe investigate after two teenagers are apparently frightened to death at the Undercliff House of Detention, a juvenile detention facility in Connecticut that was originally an insane asylum.

Frank and Joe travel to California where they investigate the leader of a utopian community and his followers to see if they intend to sabotage the oil industry.

Their efforts to recover a stolen ancient chess piece lead the Hardy brothers to Hong Kong where they help smash an international criminal organization.