Lost Island was off limits -- until now. Jeff and David are going to the deserted island to search for clues -- and hidden treasure. Town legend tells of a robber and a secret cave, but the brothers have to piece the truth together.
Thirteen-year-old Ellsworth leaves his father to visit the relatives he has never met and eventually joins forces with Jess, his distant cousin, to uncover family secrets and search for their ancestor's hidden treasure.
After stumbling upon a clue in the public library, Anthony searches for the treasure long rumored to have been hidden by a wealthy, eccentric citizen of their small town.
Describes a variety of secret and mysterious treasures in the United States, such as sunken steamship gold, lost Army payroll, and the treasure at Neahkahnie Mountain.
When the Alden children go camping on Blizzard Mountain, a place said to be inhabited by a ghost looking for buried treasure, they begin to think someone or something is trying to scare them off.