Kayson took the ring and casually set it on the table. Just as Sirius and Lu Ping were completely baffled, Dumbledore drew his wand and cast a Duplication Charm.
The next moment, Kayson handed the original ring to Lu Ping, placed the duplicate ring inside the teleporter's case, and switched it on.
Finally, he dropped Lu Ping's Ender Pearl into the bubble water. "Done!"
"It's that simple?" Lu Ping asked in surprise.
"Come on, you know how alchemy works." Kayson spoke smugly.
"Oh... it's my first time doing something like espionage or undercover work. I didn't have much experience before this." Lu Ping seemed to relax somewhat.
"If you really don't know what to do..." Dumbledore got halfway through before realizing that, in this tiny office... Kayson and Lu Ping were naturally people he could speak freely in front of, since they were reliable enough. But Sirius...
So he changed his wording. "I'll send you a few books later."
"Thank you, Professor." Lu Ping smiled.
After that, they each put on their coats. Dumbledore sighed. "I don't like holidays. It may be selfish of me, but the Headmaster's Office is still rather lonely."
"Uh... you could come with us. The house I just bought is pretty big," Sirius offered.
"Bullshit! Don't listen to him. Is he going to have company this holiday?" Kayson grabbed Sirius and Lu Ping and Ender teleported to Hagrid's hut.
Hagrid was setting up a grill in the yard, with a mountain of meat piled beside it.
"Oh, Hagrid, are you having a barbecue?" Sirius asked.
"Obviously. And he even saved us seats, didn't he?" Kayson replied. The moment he saw Hagrid set out the grill, he had returned to his office to fetch two bottles of fine wine.
"...Weren't you a little too fast?" Lu