C193 New guesses

"Good boy!" What had happened!? "What happened?!" The corner of Old Seven's mouth began to twitch as well.

"It's electricity! There was an underground cable at the end of the generator, and this was connected directly to the bottom of the river! If I'm not wrong, there must be some sort of electric machine at the bottom of the river! " Xiao Min excitedly told the two of us