Nerida would have never guessed that today's lesson would have been on Essence of Insanity. So they wouldn't be doing that now since the little Ravenclaw asked about it? She had never been good with knowing the ingredients for potions, she usually just read it. Nothing popped up in her mind about the ingredients of the Essence of Insanity. So she decided to just jot down the answers that her fellow students were saying and would just circle the ones that were.