So I feel like I should explain why Blood Feud is different in that it is not a story that involves Thorathor.
There is a conceit among fanasty authors (and fiction writers in general) that nothing exciting or important happens in their created worlds unless it involves their main character(s). One on the major influences on me for ToU is the Conan stories by Robert E. Howard. But in all of his stories, it seemed that only time the earth-shattering events happened was when Conan was in the area. Yes, some of those events were more localized in adverse effects than others, but they only happened when Conan was there. This is a conceit I wish to avoid. These are the Tales of Ubernorden afterall, not the Tales of Thorathor.
Also, by telling stories that don't involve Thorathor, I can make the world seem far more real than it could otherwise. These are events that happen independently of one another, but are influencial on one another at the same time. Sounds confusing yes, but that is just how the real world works; events happen in someplace far away, but the results affect the world by great or small margins. Ubernorden itself is a living breathing world to me, and I want to keep it that way.
Don't worry about Thorathor being forgotten though. As far as I am concerned, he is the main character of Tales of Ubernorden. It's just that his story isn't as important to the overall story of Ubernorden.
Blood Feud happens at the same time Thorathor is active in the world, so it's not like I'm jumping times as well as places.