The Ghost Who Was Afraid of the Dark: the Ghost and the Flag

When Rebecca and Ghesline learn that their great, great grandfather's mansion was being illegally sold to a shady developer, they enlist the help of a real two hundred year old ghost and his shipmates, get taken back in time to meet their own great, great grandfather in the midst of a battle, uncover a crooked deputy, corrupt city officials, a hidden treasure of historical artifacts and save the mansion from destruction. They also discover why the ghost was afraid of the dark.