"I knew something wasn't right about that girl."
Belle Donner (b.1992, actually 1900) is the child-like form of Yolanda Yewbeam. Her name, as Gabriel points out, is a pun on belladonna. Belle (as Yolanda) was a powerful shape shifter and hypnotist who appeared at Bloor's Academy quite suddenly, and integrated herself with the evil characters. She had a habit of constantly changing her eye color. It is unclear whether she was aware of this habit. She had also managed to win Asa's affections due to his being a fellow shape shifter. She was killed by Paton Yewbeam.