Franklin W Dixon

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

Their efforts to recover a stolen ancient chess piece lead the Hardy brothers to Hong Kong where they help smash an international criminal organization.

The Hardy boys find the missing deed to an Indians' land, prevent a phony salesman from carrying through a reckless scheme, and help their father solve a top-secret case.

The Hardy brothers interrupt their investigations of jewelry-store holdups to answer a plea from their cousin on a New Mexico cattle ranch.

In trying to trace a missing will, detectives Frank and Joe Hardy trap a dangerous criminal who is willing to risk all--including murder--for money.

Looking forward to seeing their favorite band at Bayport's Battle of the Bands, Frank and Joe Hardy are on the case when a bass guitar belonging to one of the band members goes missing, a situation that compromises the group's standing in the competition.

An archaeological expedition in the West turns into a desperate attempt to capture robbers and an escaped convict.

Young Frank and Joe Hardy enlist the help of their friends to solve a mysterious case involving a large number of frogs.