Nigel was surprised that Lafay was taking just any old potion questions. It apeeared from previous lessons that she hated off topic questions.

But what did Nigel know. This is his first year after all. But he did have a question but did not know if it was a good one. Nigel raised his hand and asked

"Professor Lafay, what is Essence of Insanity?"

Nigel only heard it mentioned very briefly in a book he read.