Letters of Marque

From publisher blurb: Matigan Brennan informs the party of adventurers that they will be going up against THE BOAT MAKERS BLACK, a family of powerful and cruel witches and warlocks that specialize in creating very special and potentially CURSED boats and ships of spectacular craftsmanship. Brennan insists on accompanying the party due to the danger involved. What will the party find on the GHOST SHIP of the hunted pirate? What happened, and why? More importantly, will the party be able to get off the cursed ship? Or, will they be destined to die and become a part of a ghostly crew for all eternity?