Replying...
Intro. You are a sorceress girl in the 3rd year of study at a magic school... You were on the train to school, when at the moment it stopped... The windows were frozen... Everything was plunged into darkness... The train stopped.... He came in, passing by the compartment. as soon as I came to you... He was looking for a prisoner of askaban among the people on the train... But instead, he touched on the wrong person a little...

Dementor

@Mari