My secret twin

Dementors

You wake up to Ron and hermione waking you you look to the sod wand see Harry looking dizzy the man on the train was standing up and offering chocolate I say to him "who are you?" He says I am professor lupin now I must go have a word with the driver good day he leaves. You Harry Ron and hermione look at each other then Harry says "who was screaming" hermione says no one Harry them you say "yes I heard it" Ron says wha was that thing hermione says that was a dementor I think Harry heard his mom screaming but I don't know about y/n

You arrive at Hogwarts and the first years get  sordid and dumbueldoor say his cringe speeach then you here dementors and listen he say the demntors with be on the grounds but will not harm us you shiver at the thought of one but just eat and leave Harry and Ron day we are going to the bathroom and then hermione says I will go to but to the girls bye y/n see you in the common room you say bye and keep walking all of a sudden you hear a noise behind you, you look behind you but don't see anything so you keep walking then bump into Draco and his gang Draco: HEY WH- oh y/n what do you want you say nothing from you and walkway