Never

"Careful." Mao Nianzu lowered his voice as he thread a small path made of wooden trunk arranged horizontally like a bridge while mud covered the right and left sides. He used a fish net to contain twelve fish, carrying it on his right hand.

Tang Chen was right behind him, carrying six fish in a similar fish net. His gaze wandered around the mud, stomping the wooden trunk playfully like a kid playing in a rice field.

"Get your bamboo ready. There'll be experts gathering at the lake," said Mao Nianzu. 

Not far from them was a wild bush, hindering their sight to see further. The path was slightly tilted, and as they tipped the bushes off, they saw a large lake; the other shore could not be seen.

"I did not see this lake in the peak." Tang Chen murmured. He swallowed a cold breath, filling his view with the sight as he spread it from one corner to another. He then noticed a few martial artists far from each other were busied with themselves.