An account

This is a dream from a while back. I was in a Nazi-like camp, except in the frame of the <PERSON> universe. Two of my closest friends were with me, as were two characters (<PERSON> and Sirius) from a <PERSON> fanfic. One friend and I were pure bloods--we were put in the back, and treated well (mostly ignored). The half-bloods were in the middle; they were being yelled at and terrified, and uncertain of what would befall them. <PERSON> was in trouble, because the <PERSON> figure (<PERSON>?) found out that <PERSON> was a werewolf and thus not a pure blood. The muggleborns were isolated in a separate chamber. They were forced to wear light blue uniforms, long stretchy shirts, with a symbol on them. They were also unable to walk fully upright--they were being controlled somehow so they could not hold their heads up fully, and were oddly contorted. My other close friend was among them. I woke up as they were being led away. I was trying to figure out how to save her.