Billy-Bumblers, also known simply as bumblers or throcken (a group of bumblers), are creatures with black and grey striped fur, spiral tails, and gold-ringed eyes. They look like a cross between raccoons, woodchucks, and dachshunds.
Bumblers are much more intelligent than canines and were used to herd sheep before the world moved on. Others were bred to hunt the Grandfather fleas. They also had stayed in barony castle. They have the ability to mimic what they hear. Billy-Bumblers are particularly sensitive to the approach of a Starkblast, and will face north when one is coming.