The Ruinous Rover
Captain Karkan's ship, the Brass Mermaid, was a whaler out of Erengrad. A small, fast ship, it could keep up with the sleek blackwhales that bred in the nearby Sea of Claws, and turned a decent profit bringing their carcasses in to port to be stripped for fat, meat and tough hide.
This changed on the day the first mate, Dorgsky, spotted a sinking vessel during a hunting trip.