Long ago in the rural village Prejnar a group of vampires protected the native people from the invading turks. For this service they were allowed to live in the ancient ruins which border the town. Among these ruins was a large stone castle which became the home of the vampire's king, Vladislas. At some point this king was given a holy relic, the bloodstone, which drips the blood of the saints. With this object he fed his subjects. 
To protect the Bloodstone a secret panel has been built in the castle wall.