The forth floor is the second of the two floors that are strictly used for HCC member bedrooms and lavatories. Because of this it is not as grand as the first two floors, though still awe-inspiring nonetheless. The Count, The Countess, and their immediate family are given the royal suites. These have a bedroom, lavatory, lounge, walk-in closet, and even a small side room for a personal servant or nursemaid. A personal servant is a servant whose only task is to take care of that royal's suite and serve them as needed. A nursemaid is just like a personal servant, except their primary duty above all others is to take care of any infants, toddlers, or young children the royalty of that suite may have.
You also may have noticed the absence of most of the front part of HCC Mansion. This is because most of that part is only three stories high, and therefore, that hallway leads to The Count's private den. The purpose of this room is to give The Count and The Countess a private room away from their suite that they can always go to for privacy. The only other being permitted to enter this room for any reason is their personal servant or nursemaid. Finally, the last flight of stairs upwards leads to the roof of the back part of HCC Mansion. This part is flat with handrails along the outward edges for safety purposes, and is often used for peacefulness in the moon's light with a great view of everything around you.