Mangefur was a rat scavenger in Cluny the Scourge's horde. Mangefur and Ragear led a party of 20 soldiers to look for food during Cluny's preparation to take over Mossflower Woods. Both incurred their chief's wrath when they failed in their mission.
During the siege of Redwall Abbey, Mangefur and Scumnose found Plumpen and his family of dormice and imprisoned them. Mangefur eventually died during or after the final battle, as the rats who tried to escape were killed by Squire Julian Gingivere and Captain Snow.