Help with a boarding school story please?

Maybe instead of it being a normal boarding school, make it for witches or psychics and they go there thinking they're going to train their powers but the professors (think of an evil sounding name for them as a group) want to use them to fight against humans and repopulate the earth with superior beings. Just a thought, change what you want, use it exactly, or disregard it. It's all up to you :) Good luck!