The Severed Arm was lost in an unfortunate accident and needs to be sewn back on its owner. Fishers capable of fishing in Northrend waters are randomly offered the fishing daily quest Monsterbelly Appetite from Marcia Chase in Dalaran. In Patch 3.3.3, Monsterbelly Appetite has transitioned to Disarmed! and only requires a trek of 50 yards to the waters outside Violet Hold instead of the southern end of the continent.