The second story arc would’ve been laid out pretty much like the first, with a few big stories and then a few more short stories interspersed as interludes and background pieces. The big stories I had in mind were already pretty much decided, although I won’t go into too much detail here because they developed into / were inspired by ideas for another story entirely, a fantasy novel called Herald which one day I plan to go back to. A few of them would have also shown the ideas from the epilogue of The House at Little Sarfield a little more subtly, but I got impatient.
That aside, there were three main story ideas I had, and some peripherals:
Main Story 1: The Doctor and Ace have a jolly adventure in Edinburgh (because I adore Edinburgh) with UNIT and an alien who crash-landed on Earth, and is trying to get home. He has the ability to mess with people’s memories, and makes Ace forget that she was ever hunting for him. At the end of the adventure, Ace is starting to question her life with the Doctor: she is aware that she can only have limited time before the Cheetah Virus claims her, and she wants to spend it doing the best she can for her home, not just being the Doctor’s audience.
Interlude 1: The Doctor and Ace take a break in Australia, where Ace decides that it’s time to leave the Doctor and become Dorothea. We also see the Doctor and Ace meet again after his resurrection.
Interlude 2: The Doctor meets a new companion.
Main Story 2: The Doctor and his new companion get involved in Loki and older Munin’s attempt to steal younger Munin away from Odin. Odin is a Time Lord who sleeps in a cave during the time of the Second Ice Age (with the glaciers being the “Ice Giants” of Norse myth) and is served by his future incarnations Munin and Hugin.
Main Story 3: Munin’s absence has disastrous consequences for Odin, and his adopted home of Earth. The Doctor and his new companion (with a little surreptitious help from Loki) manage to save the day. But I don’t want to go into it any further than that, okay? Even though Herald is wildly different from what this story might’ve been.
Interlude 3: The Doctor and his new companion visit Dorothea in her later years, and the Doctor fulfils an old promise to kill her when the Cheetah Virus took complete hold. (Although I have to admit that this story idea only occurred to me now, when writing up the ideas I had for the other stories. Which just goes to show how fluid the arc would’ve been, and how little this can be considered to represent it. Still . . .)
We would’ve also seen at some point how Sergeant Murphy got on as the Caretaker of the House of Lungbarrow, learnt a little of the Doctor’s connection with the Other (which would’ve been quite similar to the revelations in Lungbarrow . . . only less original) and seen a little of the Doctor’s future - travelling alone, more content in himself and with a certain trip to Skaro starting to become immanent.