On the lastest floor of the Castle, which was unknown to most people, Canute and Vick broke through the room of the palace.
That place was a huge construction made of concrete and white marble. It was quite imponent, though it seemed to be off place and lonely on that empty floor.
That was the only floor in the Castle where you couldn't go with a Teleporting pad. The only ones who could access it were a few people working for the Royal Family, those belonging to the bloodline, and the Aesirs (with an exception to Ivar, because of his black mask which didn't let him go even to the floor where the Royal Family was settled).
The King and the Queen of District 42 would pass 99% of their time inside that palace, barely going out to see their own family. For them, most of the people working for the Royal Family, and some of the others who were connected with them by blood, were just pawns that they could use as they please.