Bonewind

The Bonewind is a supernatural manifestation associated with the weather, a portal to somewhere that tears the life-breath from its victims. It is described as distorting "the sky beyond it like molten glass, that was speckled with flecks of black that whirled into and out of existence on the moment, that held storm crows, finger bones and teeth as flickers in the night."

The Bonewind is one of the antagonists in "Johannes Cabal and the Blustery Day."