The Ferryman

The Ferryman is an underworld demon who gathered the shades of the dead from the upper world and led them down to the shores of the underworld, where he transported them across the waters to hell in his skiff.

His fee was a single coin which was placed in the mouth of a corpse upon burial. Those who had not received proper burial were unable to pay the fee and were left to wander the earth, haunting the world as ghosts..