I have this hc that like boggarts take the shape of wat u fear most, dementors take the form the person you find most attractive so u wont be able to resist them kissing you.
Now trace back all these years to the 3rd year. The golden trio is in the hogwarts express with a shabby looking man sleeping in the corner of their compartment.
Suddenly, the train screeches to a halt. Harry hears some hissing whispers across the hallway. All of a sudden, the temperature drops, frost starts to creep up the windows. He sees a hooded figure creeping towards their compartment through the door. The handle creaks and the door is pushed open. A gust of cold air enters the already freezing compartment making the hair on the back of his neck stand.
It is dizzying, Harry feels nauseous, he cant feel anything around. He feels an emptiness inside of him. He tries to focus on the hooded figure in front of him, his vision blurred. He sees the figure put its hood down to show the most beautiful, alluring face harry had ever seen. She was enchanting, and she was coming to him.
"Harry.... come here.....", beckoned a voice so silky, his heart skipped a beat. She was calling out to him, tempting him to kiss her. And he almost gave in but then a white light flashed between them and he witnessed the dreamy woman change into an old ragged man and disappear in the blink of an eye. How much of that was true, he didn’t know because soon he started seeing spots and then collapsed.
A few hours later, harry woke up with a start, 'Holy shit! That was ginny!'
Across him, prof. R. J. Lupin was lost in thoughts. In the end he smiled and muttered,"Nice seeing you again Pads."