"What they used was a power that came from the Dark Crystal.
Those crystals were mined from an abandoned mine owned by Angel Company. The radio waves they emitted had the power to interfere with and control Pokémon.
They achieved that effect by putting crystal fragments into the Mysterious Device."
Tong Hua spoke at length, starting with how Pluck Hall had discovered the previous president's diary left in the abandoned mine and begun mining Dark Crystals in large quantities.
Then he described how Team Dim Sun had set its sights on Yizhi, a genius student at the Pokémon Ranger School, and used his intelligence to develop the Mysterious Device.
"Oh, speaking of Yizhi." Tong Hua slapped his forehead, as though he had remembered something important.
"He should have graduated by now and joined Angel Company as a researcher.
I also know he has a younger sister, the family member he cherishes most.
Professor Xinyuan, please look into this Yizhi. You might be able to verify what I've said."
"Hmm-Yizhi..." Professor Xinyuan wrote down the name and looked up at Tong Hua.
It was already one in the morning. Even Ampharos, the two Celebi, and Riolu had fallen asleep against the upholstered sofa beside them.
Yet Tong Hua did not seem sleepy at all, as though he was already accustomed to staying up late.
What Professor Xinyuan did not know was that, for some ranchers, going to bed at one in the morning could even count as turning in early.
Professor Xinyuan looked at the lively Tong Hua, then at the four Pokémon squeezed together on the sofa, sleeping soundly. He could not help chuckling and shaking his head.
"Young people really do have plenty of energy. All right, I've noted down Yizhi's name. As soon as it's light, I'll arrange