(from the back of the book)
Recently, signs that the Ruthless Drowner Charyptoroth will strike to seize hegemony over the Aventurian Sea are showing up: ghost ships rising from waves of blood, unspeakable creatures forging terrible alliances on the seabed, great heroes disappear without a trace and priests are haunted by visions in which Bahamuth, the Devourer of the Land, rises.
On board of the magic ship Sulman al'Nassori the heroes will face the Duchess of night-blue depths. They must uncover the plans of their enemies, visit enchanted and and forgotten places and forge the unconventional and feuding captains and privateers of the Pearl Sea into a powerful alliance. Their terrible enemy is Paligan Darion, Heptarch of the seas.