Jum Gurdy was the fat, aging Cellardog of Redwall Abbey; he was also the brother of Dorka Gurdy, the nephew of Wullow, and the kinbeast of Skor Axehound. After Uggo Wiltud had a vision of Razzid Wearat and the crew of the Greenshroud attacking Redwall, he and Jum left the Abbey to find Wullow, who reportedly knew about Wearats. He helped Uggo and another hedgehog named Posybud escape from Snaggs and his gang. Jum, Uggo, and Posy were separated out on the sea. Jum met up with Skor Axehound's Rogue Crew and the Long Patrol and was told by them of the discovery of Wullow's body, after he had been tortured and (it was implied) burned to death by Razzid. Jum swore to avenge him, and accompanied them in their journey to warn the Abbeybeasts of Razzid.