Sophie was bored. She had essays to grade, but really wasn't in the mood at the moment. So she decided to go around the castle, just like in the good old times. Well, not exactly, seeing there was only oen of her friends here, but she had a feeling there are many interesting people yet to meet.
She reached the towers and went up the stairs untill she passed the Gryffindor Head of House office. She didn't mean to interrupt, but she saw the light and thought, what the hell.
The redhead knocked on the door and hoped the other professor was even in there, it would be possible she went out and just forgot to put the light out.