"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!"--

"Now with a brand-new look, this is an edition that collectors won't want to miss! In Hunting for Hidden Gold, the fifth book in the incredibly popular, long-running series, Frank and Joe Hardy pursue a notorious gang responsible for a payroll robbery. A special treat for Hardy Boys fans and any reader who's new to the series!"--

When Mr. Hardy disappears while investigating a mystery surrounding a vacant house rumored to be either haunted or an abode for criminals, the Hardy boys search for the truth.

Joe and Frank continue to participate in the reality television show "Deprivation House," since although the culprit responsible for the initial wave of crimes has been caught, someone on the show still harbors an intent to kill.

Frogs begin to fall from the ceiling at the school's talent show, and Frank and Joe must investigate and find the source of the prank.

"In the past, victims seemed to have been children only. But since Frank was taken, who knows if anyone is safe? .... At this point, everyone is a suspect--maybe even Frank."--P. [4] of cover.

Brother detectives Frank and Joe search a hidden castle for clues to help them find a missing comic book in the nineteenth book in the thrilling Hardy Boys Adventures series.
Frank and Joe have been hanging out at Sir Robert's Comic Kingdom, the local comic and gaming shop, and got the exclusive invite to this year's Halloween costume ball at Bayport's one and only castle. Sir Robert plans to use the big event to unveil his most prized possession,...

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 Hardy receive an unusual assignment from their detective father. They are to "break into" the house of a Bayport neighbor, Malcolm Wright and retrieve a top-secret invention that the scientist had hidden in his study before leaving for California. The invention is in danger of being stolen and the boys race against time to beat the thieves at their own game. The young detectives soon discover that they are involved in a mystery far

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