Barry's invisabillity cape is one of the only possesions he has that used to belong to his father. Wearing the cape allows the user to become completly invisable. Or at least it did until Barry burned a small hole in it the first timehe used his pipe. Now it allows you to be invisable except for whatever can be seen through that small. Barry often enjoys using his cloak to stir up trouble. Once when he was strolling the castle at night he bumped into Barely Brainless Bill in thehalls and uttered a soft "moo". This led Bill to belive that there was a ghost cow haunting the school. While Bill was explaining this odd occurence at Diner Barry nearly shat himself.