Along with Vinay Patel and Pete McTighe, I'd be happy for Maxine Alderton to come back and write for the show yet again. This was an excellent episode.
The Lone Cybermen was very well done, they had a good set up for the finale and the companions felt useful as well, even if Graham did have to go to the toilet.
The darker Doctor stuff works and her scenes with Ashad were actually interesting to watch.
Nice use of the Shelleys, Lord Byron, Dr Polidari and so on.
Easily the best historical episode this series has done so far, 9/10