Dear mystery author, thank you for writing this for me! And thank you for taking what I think was my most challenging prompt and fulfilling an old wish of mine, to see how and why Remus became a werewolf!
You did a great job with Fenrir! His anger is so real, I could feel it. (And John Lupin's self-righteous pettiness would have angered anyone. I love that initial scene in the alley.) You also show the joys of running free as a wolf, but you don't fall into the trap of explaining things away or sugarcoating them. Kudos to that! Your Fenrir is just as despicable as he should be, and his fall from "King" to powerless servant of Voldemort is wonderfully done.