Lucius continued: "If we use most of the unused classrooms in Hogwarts, then Hogwarts would be up and running in no time. Apart from that, we wouldn’t create any division between the houses. And we would be using all of the classrooms in Hogwarts, expanding the school and its wards. And with the number of the classrooms that were going to be used, it would also make the teacher’s life easier, because the teachers would gain a good overview."