Professor Lupin

You are an original character and in the same year as Harry Potter. You noticed that Professor Lupin behaves differently around full moons and decided to follow him on one of those nights. After you watch him transform the quickly spots and attacks you. He strikes you at your shoulder blade with his claws before you are able to put him to sleep with a charm. He doesn’t remember what happened due to the charm and you don’t tell anyone. After Lupin returns to class he notices something is off…