Ernie rubbed at his forehead, suddenly feeling very tired. Michael was right, the situation at Hogwarts was getting more and more extreme and they needed to do something more effective.
But he didn't have a clue how to do it.
"But how?" he asked quietly, looking over at Michael. "I mean, what can we do, other than try to keep students out of detention in the first place. Once the Carrows get involved, I don't know how to protect anyone."