There are no continents in this aquatic layer, but a handful of islands support the warring fleets. Grand and powerful warships clash in the open waters and bombard settlements. The ships may be familiar, but there are many other unusual engines of war: constructed krakens, submersible warships, monstrosities and dragons bound to service—wonders that the people of Eberron can imagine but can’t yet create. The pirate queen Lhazaar surely has inspired a sword wraith in the Bloody Sea . . . but which legion does her sword wraith fight for?