When A.T.A.C. agents across the country start getting strange and bizarre cases, it's up to Joe and Frank Hardy to find the computer hacker responsible! Anyone

When inner city kids are gifted pilot lessons from a flight school, several of them go up but don't come down! Where did they go? Where did they land? Could the

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 Lib

Frank and Joe Hardy finish up a case helping a fellow ATAC (American Teens Against Crime) agent, who sharp-eyed fans may recognize despite her Alias. Things see

Someone has made death threats against a high school talk radio host... and it's up to Joe and Frank Hardy to find out who is making these threats and why. Befo