The first frost is due on Thursday. It is Monday. There are three nights in which this can happen and the room only opens on the night it chooses.

CorvinaIt has chosen tonight. The door at the top of the stair has been ajar since I came down at six and I have not touched it.

PorterAnd if we do not like what comes out of it?

CorvinaThen you lodge a painting of the heir of this house doing something she has not done, in a Ministry archive, where any clerk can request it for the next four hundred years.