I read all 8 chapters of this story last night, and must say that it was a very moving story. I don't think I have ever read quite anything like it in a Fan Fiction work as far as the subject matter goes
(death camps, experiments, etc.). Speaking for myself, it was a little shocking to read at first, but then good things come to those who wait, and I found the ending to be very inspirational and encouraging.
First, I like the fact that you left each, or most, chapters at a certain shorter length. That made it easier for me to stay interested in the story and continue on reading more of the story as sometimes very long pages tend to bore me or make me lose interest.
I also didn't notice any problems with grammar or anything that needed proofreading again, or any other such thing. That was great too!
It is almost hard to say what one feels on reading some of the atrocities that may have taken place during this particular time in History. You have described some of them extremely well and left even more to the imagination of the reader which basically draws the reader more into the story, I think.
It was hard for someone such as I to even begin to imagine the pain, suffering, and heartache that these characters (and others in real life) may have had to go through and that has been confronted here and forced the reader to think about many of those related issues, which is good for humanity everwhere, I think. Mostly because,
as the Doctor found out, only by facing those issues and changing ourselves and what is in our own heart, will be the only true way that change will ever come for us, and for others all over the world.
One thing that bothered me, though, is that I would have liked to have found out more about
the Doctor's sister, I think it was, and more about what really happened to her, them as a family, etc. Also, it was a little disgusting to even think that Stella would have any romantic notions about this man/doctor who had so brutally abused her, and vice versa. However, that is one fact of life that while it may never be understood, does indeed happen.Great characters! Fascinating Story! Excellent Ending!