If Su Er could have seen the scene outside.
In the gloomy, rainy night, the train sitting on the tracks was shrouded in dark gray, with more than a dozen cloaks flying above it.
They all avoided the rear of the train. From there, they could sense a deadly presence and hear the wails of their dying companion.
But the Dementors kept circling overhead, unwilling to leave.
There was no other reason: the emotions inside the train below were too delicious, and they had been hungry for too long.
A thin figure shakily climbed onto the roof of the train and raised his wand.
The wind and rain drowned out the sound, but a silvery-white light could be seen glowing at the tip of the wand, like a rising sun amid the dark curtain of rain.
The Dementors retreated. They had no choice. They could clearly sense an undeniable command within that light.
"Leave, or die here!"
Inside the train, in Su Er's compartment, the chill the Dementors had brought still lingered. Hermione was deathly pale and shivered now and then, but her gaze remained transfixed on the figure standing with his back to her in the doorway. That white light in the darkness was so warm.
"Click..." The lights came on.
The Dementor was dead. Even its ashes had literally been scattered. Everyone there had clearly heard the inhuman wail it had let out as it died.
To guard against a second Dementor entering, Su Er remained leaning against the sliding door despite feeling weak all over, his lively Patronus perched on his shoulder.
Only when the train started chugging again and slowly moved forward did he turn and return to the compartment.
The sliding door rattled shut.
"Hermione, are you all right?" Looking at the somewhat dazed Hermione,