"You raise a very good point, you do have a lot to catch up on and as such I feel your detention would be better served revising the previous weeks" A slight sense of relief appeared in Rons chest. The shock clearly showed on his face however. "Do not act surprised Mr Weasley as while I'm sure you have heard some frightful tales of me from the other more lively members of your family. I am not a completely unfair man. As such, I have found you a tutor, someone who is eager to impress me and has offered a service in any way I might need, therefore I feel it is best that she'll be helping you."