On Thursday, Su Er was discharged.
Madam Pomfrey could not understand why someone who had still been glowing the day before, whom no treatment could wake, had climbed out of bed full of life the following day.
But after running all manner of examinations and confirming that the young wizard before her truly could not have been healthier, she could only let him leave the Hospital Wing.
On the Seventh Floor of the Castle, in the Headmaster's Office.
Su Er held a glass of Pumpkin Juice as he sat opposite Dumbledore on the sofa.
"It looks as though you're all right now," Dumbledore said with a smile.
"Yes, Professor. Better than ever." Su Er stood and bowed slightly to the old man before him. "Hermione told me. You saved me. If it hadn't been for you..."
"It was only a small matter. There's no need to thank me," Dumbledore said. "If not for Amelia, I wouldn't have known how to get that Philosopher's Stone out of your vault."
"It may have been a small matter to you." Su Er spoke earnestly. "But my life depended on it."
Dumbledore shook his head dismissively. "Any headmaster of Hogwarts would step forward when a student was in danger."
"Coming back to it, what exactly happened?" Dumbledore's expression grew more serious. "If I wasn't mistaken, the spell that rendered you unconscious..."
"Was the Patronus Charm, wasn't it?"
"Yes, Professor. It was the Patronus Charm." Su Er nodded and told him everything about the white space he had entered in his sleep, as well as his suspicion that it might be connected to Dementors.
Still, Su Er did conceal a few things.
"Dementors, the Patronus Charm..." After listening to Su Er's account, Dumbledore fell into thought, tapping his fingers lightly on the desk.
"No one