Such a sad, heart-breaking story -- you portray Flitwick so well, with all his strength and weaknesses, and your prose is a joy to read.
Yes, there was clearly something about it – always worming out of the Weasley boy’s bag during Charms, sitting up a little too attentively, eyes just a little too fixed to be random chance.
WAH. *swallows down large lump in throat* The contrast between young Peter and 'the man that the rat could become' just kills me.