From Wildermyth Wiki
A type of powerful Gorgon. Also see gheist. Grown ancient in their illness, these bears move as avenging spirits, hardening the skins of their fellows with sheets of buzzing force, gaping in austere hunger at all the world.
'There's a bear out there. A big old bear. Its heart has been replaced by a cinder. Its teeth seek only flesh for the rending. Its belly seethes, ever burning empty.' - The Starfallows Poet