Billy and Sheena go with their Uncle Dr. Deep to search for treasure and are pursued by pirates who have been dead for two hundred years and when Billy and Sheena return to land and visit Horrorland they encounter their worse fears.
Billy and Sheena go with their Uncle Dr. Deep to search for treasure and are pursued by pirates who have been dead for two hundred years and when Billy and Sheena return to land and visit Horrorland they encounter their worse fears.
