Professor McGonagall felt as though her whole body was trembling. She took a deep breath, quickly composed herself, and said to Albert, "Mr. Anderson, if you can turn a match into a mouse, I will allow you to join my Transfiguration Club."
"Transfiguration Club?" Albert looked utterly bewildered. He admitted that his memory of the book *Harry Potter* was a bit hazy, but it seemed... indeed... there had never been any mention of a Transfiguration Club... Ah, right, it didn't exist; there was only the Slug Club.
"It's a club I formed, meeting twice a week to discuss and research topics related to Transfiguration," Professor McGonagall explained.
Chapter 17