"Joe and Frank's winter break skiing holiday turns to horror when a series of deadly mishaps threaten their resort."--

The Hardy brothers embark on a freighter trip under mysterious circumstances and find themselves involved with a smuggling ring.

Frank and Joe Hardy must retrieve a top-secret invention that a scientist had hidden in his study. Their investigations put them on the trail of jewel thieves and smugglers.

The Hardy boys embark on another puzzling mystery when they try to discover who is stealing rare collections of ancient pirate treasure and smuggling them out of the United States.

Their SOS ignored in a storm, the Hardy boys find a wallet containing two thousand dollars alongside their boat and are launched into a mystery involving diverse clues.

When two suspicious plane accidents occur near an eastern airport, the two Hardy brothers investigate the case and find themselves in greater danger than they anticipated.

Timber wolves, a Rocky Mountain blizzard, and a mine cave-in are only a few of the perils Frank and Joe Hardy encounter during their search for the principal members of a notorious gang responsible for a payroll robbery. Clue by clue, Frank and Joe cleverly fit into place the scattered pieces of this dangerous puzzle and come up with the astonishing solution.

"The Hardy Boys are determined to find their friend when she vanishes into thin air."--