Jing Yiran failed to find Tang Shunian in the end.
Because the passage through which he escaped led to the middle of the river.
That river had been expanded and deepened by Tang Shunian and Jing Yiran could not find any trace of where he was headed. He felt that there must have been some other passage leading to somewhere else through the river, and Tang Shunian must have taken that way.
He might have cursed at Tang Shunian for being a rathole maker, but when Jing Yiran saw this complicated underground kingdom, he got a bit shocked.
Tang Shunian must have spent all of his energy and money upon building this underground world.
He had really become an expert in this aspect. Jing Yichen might have grasped some bit of it but he had not been able to understand everything yet.
Jing Yiran got distressed because he had planned to kill Tang Shunian in order to get Jing Yichen to admire him.
But the guy managed to escape.
