Originally, this was my favourite from season 18. But, this time around I enjoyed Keeper of Traken more. Logopolis is still great, it has a sense of doom throughout, which makes sense if you know this is when Tom's Doctor regenerates at the end. Anthony's Master gets better over the next few years, but here I found him a bit mediocre. This has been Adric's best story so far. We get Nyssa joining as a companion and also Teagan, who has a good intro in the first two episodes. After all the Fourth Doctor has been through, to fall to his death was a bit underwhelming, although he did give off tired and old in this story.