Rover Mansion

The Rover Mansion is a mansion sitting on an island in the middle of Yuba's Lake. The only way to reach it is to cross the lake (coming from Aljiba's Woods and taking the Lower Road) by kneeling at the base of the lake while using a Blue Crystal. This allows you to go underneath the lake and enter the mansion. Once inside the mansion, you will be able to find Dracula's Heart. Showing this Relic to the Oarsman at the Dead River to the west will cause him to take you to a place he normally doesn't take you to.