It’s a bittersweet feeling, watching the greatest story in this marathon so far. On one hand it’s a marvel that such a production exists. It is a whole world in its own right - the gritty streets of Victorian London, the theatre, the coroners’ house. It’s no wonder that it inspired a Big Finish spin off which successfully continues the vibe and feeling on display here. But on the other hand this is the final chapter of the Hinchcliffe era and it pains me that there is nothing left for me to discover with him at the helm.

Of course I’d seen this story before, but oddly I was far more familiar with the first half than the second, and plenty of engaging the interactions, especially those between Jago and Litefoot, felt totally fresh to me. Once again, and more than ever, I was in awe of Holmes’ writing. The story is split between so many settings, on both beautifully realised locations and sets, that you never get a chance to be overly familiar with any aspect of the story - it’s fresh and exciting from start to finish. The storyline is layered and complex but easy to follow. The clash of the 51st and 19th centuries feels believable and engaging because this unrelatable alien menace is shrouded in a Victorian language we can understand.

As it stands Leela is my favourite companion in the show so far. She is so inspiring and brave in this story, pushing the whole narrative forward. We’ve never had such a tenacious companion. She is unique, in large part owing to her origin story. I wish they’d take a chance like this with a companion again. She manages the impossible task of filling Sarah-Jane’s impossibly large boots and makes an excellent pairing with the best Doctor we have seen up until this point.

The performance of Li H'sen Chang is impeccable, but that of course brings us to the flaw in the Persian rug. It is a real pity that The Doctor views the Chinese so cruelly. It may have been reflective of attitudes in 1977 but it was appalling and makes for uncomfortable watching today. This paired with, for want of a better phrase, “yellow face” doubles down on this discomfort. At points the script is simply racist, many fans today will quite fairly not be able to see beyond this.