Frank and Joe might be in over their heads when they discover an aquatic smuggling operation in this chilling Hardy Boys adventure—a fresh approach to a class

In their latest caper, Ken and his EngiNerds crew are on the hunt for just one rogue robot. But who knows what kind of mayhem one mechanical creature can cause?

First eleven-year-old Megan is astonished when her mother insists on taking her and her younger brother up to the lake cottage a week before school is out; then

Brother detectives Frank and Joe cook up a new case as a series of accidents threatens a remote island in the twenty-second book in the thrilling Hardy Boys Adv

Frank and Joe find themselves in a cattle-rustling tussle when a prized horse is snatched from a nearby ranch in this exciting Hardy Boys equestrian adventure.