Brooke's body was never found and people said the crocodile had eaten her whole. But Brooke wanted to stay around on earth, so she decided to got to Hogwarts in the form of a ghost. Lots of people became scared of Brooke so Brooke wanted to create some kind of charm that makes ghosts look like humans. After weeks of researching Brooke finally did it, she created a charm to disguise herself to look like a human. After that Brooke looked like a human people didn't notice. To this day Brooke attends Hogwarts as a Slytherin student. Lucky for her she has made lots of friends and nobody turns her down for being a ghost.