Frank and Joe Hardy become involved in a mystery after the theft of a hot rod belonging to their friend, Chet.

A criminal that seems to be straight out of a Sherlock Holmes novel is out to get brother detectives Frank and Joe in the sixteenth book in the thrilling Hardy Boys Adventures series. An original Sherlock Holmes manuscript was stolen from the Bayport Museum and now pages keep showing up in Frank and Joe's things: their lockers, menus, even the backseat of their car. It's clear someone is out to frame them. But who could it be? The boys try their usual...

Brother detectives Frank and Joe find themselves on the basketball court and in the midst of a dangerous team initiation scheme in this thrilling Hardy Boys adventure. Joe and Frank are taken aback when Principal Gerther announces that they need more extracurriculars on their school transcript, and he's signed them up for the basketball team. They think it's odd because they both stink at basketball! But the Hardys soon find out that their principal...

Joe and Frank try to find the daughter of an amusement-park owner who has gone missing without a trace.

The Hardy brothers' search for the missing son of a wealthy industrialist leads them to Brazil and great danger.

The Bayport High Conservation Club is going camping at Black Bear Mountain where, legend has it, a crazed flesh eating man lives.

Frank and Joe, the Hardy boys, solve a mystery involving a magician, American secret agents, an international spy ring, and a Scottish castle.

When the Hardy boys set out to investigate the disappearance of Mr. Grafton, they become involved in capturing a gang of counterfeiters.

When banker Raymond Dalrymple's life is threatened, Joe and Frank Hardy are called into the case in Fenton Hardy's absence.

Frank is doing an internship at the Bayport aquarium and Joe is taking scuba diving lessons when they stumble upon an aquatic smuggling operation. Can the Hardy boys stop the people behind the smuggling ring or are they in over their heads?