Laruba Mansion

Laruba Mansion is the fifth and last accessible mansion in the game. It is just to the east of the Carmilla Cemetary and is guarded by Carmilla's spirit, but an impossible jump makes it impossible to reach from the cemetery coming from the west. Instead, to reach it from the west side of the cemetary, you must travel across the Dead River to the western most part of the game, Deborah's Cliff, use the Red Orb to take a whirl-wind to transport you to the east side of the map at Bodley's Mansion, continue heading west, using the Red Crystal again at the base of some water, continue heading west and then reach it.

The entrance to the area that holds this mansion's relic, Dracula's Ring, is guarded by a giant mask referred to as Vampira in the manual, which generally thought to be the mask of Carmilla. While it is possible to skip fighting this boss in order to obtain the relic, it must be defeated in order to obtain the Magic Cross, which is also needed to enter Dracula's Castle.