This is a really interesting set of characters to use and you weave a fascinating story with them. I found it particularly interesting to see a young Greyback. He is close to being pure sadistic evil in canon and you didn't lose that, but you humanised him. The Carrows, similarly, don't get motivation or personality in canon and it was brilliant to be interested in and to sympathise with them. Amycus' in-off, hot-cold relationship with Peter, and the roots of Peter's portrayal were well written and I really enjoyed this story.