The two sisters spent such a long time and got the harvest. One was the wind farm, the other was the chemical plant Shen Shisan said in the video conversation today.

With the help of topographic advantages, the wind farm is equipped with open hills and dark whistles, which are impossible for outsiders to approach.

... One interesting thing to say is that the ice-glasses are icebound and can trace down the chemical plant that even Mr. Moore has missed, thanks to a clue they grabbed from the wind farm.

So, when the ice-cap glasses didn't make any progress in facing the wind farm, they took another clue from here...