Oh, but revising with them is utterly nift! It's not all quills to the parchment all the time. We talk about the YPL and this weekend Johns brought her combs and let the other girls have a go with them. They twist your hair into the most impossible hairdos! And when we knock off, Sandoval usually has the elves bring something to the common room, like persimmon cakes.

I think Greengrass has been to one or two of the Slytherin teas, but I don't think they've had persimmon cakes.

And of course anyone can ask prefects for help. But it's different if they're the ones who invite you, isn't it?