Johnny's Treasure Adventure

Johnny and his friends help to solve a mystery which spans beyond a century, when they find buried treasure near the beach. Together, with the help of the police department, they find answers for how the treasure wound up where it did and who it belonged to. But there is one piece of jewelry in the treasure chest that turns out to have a ghost attached to it. The ghost makes it frighteningly clear that no one else is to have the ruby necklace.