Continue looking around.
From Lord Of Utterdom
By the time you make it to the end of hall, you realize there's not a single soul present. Just you and dozens of doors.
You turn to make your way back out, and see a door open, and a young maid step from the room. She glances up and sees you, and nearly jumps from her skin in shock.
"My apologies, my liege!" she says, courtseying bashfully. "I did not know you were here."
Dismiss her and Head out and go elsewhere amongst the castle