Day 284: The Mind of Evil Episode 2

The Mind of Evil concerns a machine known as the Keller Machine. It has the annoying side affect of forcing a person who is afflicted by it to live out their worst nightmare. This has caused a man to be drowned in a room with no water, and another to be attacked by rats with none present. But what's remarkably interesting is what happens to the Doctor when he is pitted against the Keller Machine. He sees flames. Flames of a world that he once visited that had a horrible disaster occur. A disaster that he was unable to prevent. It's not explicitly stated, but I interpret this as a reference to the previous adventure written by Houghton, Inferno. It makes sense, because it represents the Doctor's greatest fear. He was forced to watch that world burn despite the fact that he could have saved it. But the damage had already been done and now he was powerless to stop it. It's a nice touch of continuity, as we realise the fact that the show is not one of unconnected adventures and that there are knock-on effects for the Doctor as a course of the actions that he partakes in.