The castle itself is a huge and vast living organism with a heart that had been created in ancient times by powerful witches. The moats of Cloud Tower are its roots and the towers its branches, and a magical energy circulates through the school in a way similar to blood flow.
Cloud Tower is hard to enter, as there is a defense field surrounding it. There are ways of getting past this defense, however: tunnels that connect the schools, ways to get past the field itself, and one may enter if invited. Along with that, the tower can be manipulated like a high tech confusion device by the one who is able to control it. This twists the building into forming new corridors or passages to confuse all those inside.
Cloud Tower School for Witches has a stellar offering courses in Mayhem, Hexes, and Potion theory. Cloud Tower is the pinnacle of education in the dark arts. It also offers Basic Witchcraft 101, Cursology, and Potionology. And it has been shown that Griffin has taught Metamorphosymbiosis. Students spend at least three years at Cloud Tower studying witchcraft.
This campus is a dark purple tower with spires located on a hill or a mountain. It likely receives its name from how cloudy the place where its location is.
The amphitheater is where all the witches gather and discuss important issues. The amphitheater has benches with chairs for the students and has a pentagram in the middle of the floor. It has a balcony overhead with three thrones, the one in the middle is bigger than the others.
Headmistress Griffin's office is a large room with a desk and bookshelves. A Crystal Ball and stacks of books sits on the desk. In the room is a passageway to another room, at the center of which is a dragon skull.
Bittersmoke's Living Quarters
Professor Bittersmoke's living quarters has a purple bed, a window over his bed, two green nightstands on either side of his bed, and a grandfather clock.