"Eating candy nonstop and watching TV all day sounds great . . . until you actually do it, as the kids of Bayport High find out when all the adults vanish, and the world's greatest (high school) detectives--the Hardy Boys and Nancy Drew!--have to team up to solve the mystery! Whether it's going under cover, sneaking out at night, chasing weird buses, or following a strange smell, they know it'll take all their wits and smarts to get their parents...

Frank and Joe Hardy investigate the disappearance of several teens at a "tough love" western camp.

"The evil female counterparts of the Hardy Boys, the Sisters Noir, and their equally evil father return to create serious chaos! Joe and Frank are working out at a top-secret training facility on the grounds of A.T.A.C. headquarters when the compound is set-upon by Poppa Noir's anti-justice organization. The only two people who are available to free the captured adult ATAC agents are the Hardy Boys, and they have their hands filled battling their...

Joe and Frank find themselves on the strangest bodyguard duty ever--protecting the five children of a visiting dignitary during a field trip to the National Library of Education in Washington, D.C. It might sound easy, but before this assignment is done, they're going to need help from the most unexpected ally of all ... their mom, librarian Laura Hardy!

"Frank and Joe go undercover at a national spelling bee where a mysterious madman known as the Hangman is determined to erase the competition! Teens from across the globe have been invited to attend, and A.T.A.C. and the Hardy Boys have to do everything they can to keep the Hangman from spelling disaster!" -- fromn publisher's web site.

Collects four Hardy Boys mysteries, including "To Die Or Not To Die," in which Joe and Frank Hardy go undercover at a nationwide drama competition to discover which contestant has been knocking off the competition by any means possible.