The knights quarters are where the King's royal guard is allowed to lodge. The quarters are dimly lit and are generally only populated at night time. Several beds are aligned along the walls with locked trunks at the base of the beds, where the knights keep their personal belongings.
Knights Quarters, Inside Castle
mice
knight
I am a knight who has taken a solemn oath to protect the royals. My family is of noble blood and has always been charged with caring for the royalty of the kingdom. I take pride in being a knight and the honor it brings my bloodline.
A talking mouse? What wizardry is this? I'm not sure. Everyone has always been able to hear me.  Are you by chance a man that was turned into a mouse by a powerful sorcerer? Hmm... perhaps I once was. That would explain why I woke up wrapped in those huge human clothes! Hmmm...... Do you remember what kind of man you were? I think I wore armor, just like yours! I am sworn to protect the royal family. Can you swear that wish no ill of them? I would never do anything to hurt the royals! Then as an honorable knight I pledge to seek the King's permission to help you on your quest to determine your true self! That would be grand! Perhaps I could be restored and be a knight, too! Perhaps if we can restore you to your former stature.  And then I could serve by your side, and support the Kingdom!