Charon’s Ferry

Origin
The psychopomp Charon would ferry the dead across the River Styx in this ship

Effects
The ferry is completely immune to the acidic properties of the River Styx. When a person steps aboard, they must place a gold coin (at least one for every intended passenger) into a small dish. After doing so, the ferry will begin to sail itself to the opposite side of the river. If the person does not supply proper payment, the ferry will immediately proceed to completely submerge itself until the passenger has sunken underwater and dissolved, after which the ferry will surface in its usual condition.

Collection
At last recorded sighting, the ferry remains within the Hades Caverns.