C272 Spiders
This Moon Gazing Lake is not a real 'lake' at all.
Zhang Liang didn't know what the theory behind this lake was. However, he knew that some of William's arrangements on this Moon Gazing Lake must have a lot to do with the Inner Eyes he was researching.
The bright and cold lake water was an extremely real layer of concealment. As for how it was realized, Zhang Liang had no idea