"Good luck." Kayson sent Harry off with a smile.
Cedric stroked his chin. "Professor, aren't you going to help Harry?"
"Didn't Harry say he could do it himself? Then let him figure it out." Kayson shook his head.
Then, during Alchemy class the next day, Kayson covered the blackboard in densely packed runic symbols.
"With these runes, along with enchantment books and an Enchanting Table, you can accomplish things that would normally be impossible for us. For example, if you enchant a hat with this rune, you'll be able to breathe underwater. Pretty interesting, right?"
Harry, who had been copying the runes into his notebook, suddenly paused. After thinking for half a second, he finally decided that he should bring a gift to the Alchemy office someday and apologize to Professor Kayson for his willfulness.
Then he continued copying.
After class, Kayson went straight down the stairs to his office and saw Dumbledore rowing a little boat over to him.
"What happened?" Kayson asked in surprise.
"The Christmas Ball, remember?" Dumbledore said.
"Huh?" Kayson looked utterly confused.
"We said we were going to get that outsider hiding in Hogwarts drunk," Dumbledore rephrased.
"Oh, the holiday drinking party!" Kayson finally understood.
"So the only thing you remembered was the alcohol?" Dumbledore said, rolling his eyes.
"More or less. Are we going to make a huge batch of Polyjuice Potion antidote with Snape? Actually, milk can achieve the same effect," Kayson said.
"The Polyjuice Potion antidote, then. We can put a mild antidote directly into the wine and identify the person whose body changes," Dumbledore said.
"All right. I had only just remembered the effect of milk," Kayson said with some disappointment.
"Oh, right. Have you found a dance partner yet?" Dumbledore asked.
"Uh, I'm not planning to dance."
"All right... That