The three distinguished sons of the Nangong Family - Nangong Le, Nangong Zhuo, and Nangong Xi - were not feeble. Although they didn't possess the level of intelligence and skill of Nangong Zheng, they managed to track down Zhou Gu and the others after twenty days.
Just as a goose leaves a trace, people also always leave unavoidable traces behind.
Zhou Gu and the guards had long since healed from their injuries. Confronted with the falcons and assassins they had finally identified, Zhou Gu killed a falcon and once again entered into conflict with the Nangong Family.
Nangong Le was the first to arrive. Nangong Yu had died under Zhou Gu's sword, which filled the affectionate Nangong Le with deep resentment towards Zhou Gu. He led a team, double the number of Zhou Gu's men. He didn't rush to attack after he found people. Instead, he sent out a signal and then made his move.