Firty was a rat Sea Raider aboard the vessel Bludgullet, commanded by Vizka Longtooth. He is described as being very short, almost runty. Firty was sent with Vizka's brother, Codj, to scout for Redwall Abbey. While doing so, the rat heard the cries of young Redwall hedgehog Orkwil Prink, who had been exiled from the Abbey and who had unwittingly fallen asleep in a swamp. The hog was rescued only to be captured by the Sea Raiders.