The mega-battle episode of Game of Thrones last week drew more viewers overall than any episode of the series to date – a record 17.8 million – even though it was so dark, cinematically as well as thematically, that most of it was heard but not seen. This week, we get the aftermath of the victory over the Night King, and the survivors turn their attention to their major remaining foe – Cersei, whose battle scenes, at least, are likely to be fought in daylight.