Vampirates: Demons of the Ocean

Fourteen-year-old twins Grace and Connor are outcasts in their small town. Grace is curiously smart and oddly knowledgeable in many subjects, and Connor has athletic skills that even he can't account for. When their father passes away, they become orphans and all they have left is each other. They leave home and sail off to a new life, but their boat is shipwrecked and the twins become separated. One is rescued by a group of vampires, the other by a gang of pirates. Adventures are plentiful, but will the twins ever find each other again?