"Sorry for the wait, Su Er." Just as Su Er was listening to the former headmasters on the walls boast about the respectable deeds they had performed while they were alive,
Dumbledore's voice came from behind him.
"I only just arrived, Professor." Su Er shook his head. "Was there something you wanted to see me about?"
After Dumbledore arrived, the former headmasters fell silent as well, watching the two people outside their portrait frames with curiosity.
"There's no hurry." Dumbledore pointed to an armchair nearby. "Have a seat."
Under Su Er's curious gaze, Dumbledore walked over to a nearby cabinet, opened it, and took out a box. He sat in the armchair opposite Su Er before speaking.
"You can probably guess why I asked you here, can't you?"
Su Er pondered for a few seconds before venturing, "Is it because of what happened to Harry over the summer?"
"You're very clever." Dumbledore smiled. "After receiving that letter, I sought out several old friends. With their help, I managed to learn a little about what happened to Harry."
Dumbledore paused, tapping the box gently with a finger.
"It concerns some terrible things Riddle did in pursuit of immortality."
"You mean-"
"Horcruxes," Dumbledore said softly. "Do you know what they are?"
Su Er hesitated, neither nodding nor shaking his head.
"I once saw something similar mentioned in the Library. They're the product of an extremely evil form of magic, but I didn't see any further information. The crucial information had been torn out of the book describing this evil magic."
"Yes." Dumbledore's expression held the hint of a smile. "I seem to remember that book being kept deep within the Restricted Section..."
Su Er's heart lurched, and he gave an awkward smile.
"A thirst for knowledge is a good thing," Dumbledore said