The fourth floor is the quietest floor in all of Hogwarts. Those who have been here long enough and know the layout know this as an obvious fact because the primary features of this floor are the Library and Study Hall. To soften your steps as you make your way around, a carpet drapes the entire floor of the corridor. Remember to keep your voice at a whisper because there's important studying going on in this part of the castle!

You will find large green vases placed in the corners of the corridor as well as a number of portraits. There really isn't anything exciting about the vases, though Peeves is known to pick them up and throw them at unsuspecting passersby -- it is strongly advised that you always stay alert. As for the portraits, you will likely notice right away that most of them are of peaceful landscapes. Nevertheless, you will eventually come across Brutus Scrimgeour (author of The Beaters' Bible), Hengist of Woodcraft (founder of Hogsmeade), and Edward Rabnott (a wizard with three different personalities).