Mark stopped pondering and finally asked the dancer herself, "Caterpie, what kind of dance are you doing?"
"Si?"
Caterpie stopped dancing, her face filled with confusion.
Had she been dancing?
Mark frowned. "You said you weren't dancing. Then what were you doing just now?"
Caterpie tilted her head, looking at her own body in puzzlement before showing a look of realization.
The way she had looked just now really had resembled dancing.
"Si si, si si si, si si si."
Caterpie quickly explained her movements.
"You mean you heard a sound and unconsciously moved your body along with it? What did that sound sound like?" Mark asked doubtfully.
"Si si, si si si, si si?"
Mark couldn't hear it?
Caterpie tilted her head as she explained, telling Mark to listen carefully. The sound was not quiet; Mark should have been able to hear it too.
Mark looked confused and turned to Butterfree beside him. She shook her head as well, clearly unable to hear the sound Caterpie had mentioned.
In fact, it was not only Butterfree. None of the Caterpie present could hear the sound Caterpie described.
"Si si, si si si."
Caterpie tried her hardest to describe it. She had truly heard an incredibly, incredibly beautiful melody, and that sound had made her dance without realizing it.
Mark swept his gaze around. "Could it be a prank by some Ghost-type Pokémon?"
"Si?"
Caterpie froze at Mark's words, then repeatedly shook her head.
It definitely was not a Ghost-type Pokémon's prank. Why couldn't her master hear that sound?
That sound was really quite loud!
Caterpie rubbed her head with her forelegs, racking her brains, when she suddenly thought of a solution.
"Si si si, si si si, si si si si."
"You mean, use Heart-to-Heart?"
Caterpie nodded repeatedly.
The next