"So that's how it is. Then this box must contain an Evolution Stone! But why would Evolution Stones be specially packed and placed here? Something so rare should have been used up long ago!" Ash said, looking somewhat puzzled.
"I suspect these stones might be artificial," Mr. Steven shared his hypothesis. "Through some ancient secret art, the relevant energy was gathered into the stones. The stone acts like a container, and then Pokémon touch the stone to complete the evolution they desire."
"I wonder what happens to a Pokémon if it evolves through these stones?" May asked.
Chapter 60