The Barbary Coast, 1621. A mysterious vessel floats silently on the water. It is known only as the Ghost ship. For months, its captain, Louise Reydon-Joubert and her courageous crew has hunted pirates to liberate those enslaved during the course of their merciless raids. But now the Ghost ship is under attack, its hull splintered, its sails tattered and burnt, and the crew at risk of capture. But the bravest among them are not who they seem.