When Bayport High's newest soccer player, Carlos Capac, is nearly killed in an act of sabotage, the bpoys learn that his father has been kidnapped and there's only one way to save them both: fly to the Capacs' South American homeland-- and into the middle of a political powder keg.

The Hardys have come to the Hawaiian islands to join in a scientific research project at the Mauna Kea Observatory. They have won the chance to witness a once-in-a-lifetime event--a total solar eclipse. But at the very instant day turns to night, the excitement suddently turns deadly. The boys find the expedition leader murdered!

While on a trip to Portugal with their father, the boys go on their own hunt for gold bars, a treasure that was buried in Mrs. Rilke's childhood backyard after World War II by a defecting German soldier. Someone else has found out about the treasure and is searching for it also. Can Frank and Joe find it before it falls into the wrong hands?

Frank and Joe have press passes to cover the Formula One championship in Indianapolis. They soon realize that the competition between the top two racers has gone into overdrive.

"When the popular comics character Morpho the Morph Monster comes to Bayport for a fan event, everyone is excited, including Frank and his brother, Joe! Morpho is also bringing his very important Morph Spork--a special tool that helps him eat people's brains. But right before the event is about to start, Morpho's Spork goes missing!"--P. [4] of cover.

Joe and Frank investigate the disappearance of their friend's father when the plane he was flying disappears over the Adirondack Mountains.

When Frank and Joe investigate a series of gangland killings, they find themselves in a race to save their father, a former detective with the NYPD.