For years since the end of the Third War, Seahorn became an active member of the Blackwater Raiders and was promoted to be in charge in taking care of every vessel that belonged to this faction. However, he and his faction were at war with the Bloodsail Buccaneers led by Fleet Master Firallon. After learning what Firallon and his people were planning to do in raiding Booty Bay, Seahorn worked alongside his companions Doctor Draxlegauge and Shakes O'Breen to searching for some treasure that was buried in Faldir's Cove.