Scholastic Children's Books
Billy and Sheen always expect adventure when they join their uncle, Dr Deep, aboard his high-tech boat. What they don't expect is a trasure hunt leading to a two-hundred-year-old sea captain... who refuses to stay dead! Just when they think the tide is turning, Billy and Sheen accidentally dive into a dangerous mystery. A chilling surprise awaits them in HorrorLand, the theme park where their worst nightmare is about to come to life.
Goosebumps Horrorland / 2008 -