It holds for six nights in a row after that, which Corvina says is not the same as it being safe.

CorvinaIt is holding because the three of you have stopped pretending in a general way. It will start objecting to specifics.

The specifics start on the tenth night, and they start with Mione saying, at the door of the hall, that she is not going to spend the rest of the month being sensible.

MalfoidThen do not. It is a large school and there is nobody in it to be scandalised.