[BONUS]
While Ren and Evie traversed the basement, the former was mentally counting the number of areas in the castle he could remember as he looked at the map.
An Underground Cemetery was located in the basement. There was also one in the garden, as well as on the ground floor near the garden in the left wing.
The study and chapel were on the right wing upper floors, as well as the Inner Quarters.
The Arena, the Dance Hall, and the dining hall were located on the lower floors left wing.
There was also a Clock Tower. Ren recalled more. Forbidden Area, Floating Garden, Castle Corridors, and the Chaotic Realm in which Dracula situated himself. There were more areas, but Ren couldn't recall them.
To make matters worse, many areas were interconnected with each other and had many hidden passageways. If Ren really thought about it, his brain would explode.