The Emperor was badly hurt and needed rest. Yan Huisheng knew very well that he couldn't leave the Capital City.
After all, the faction of the second Prince had not been dealt with yet, and he didn't know if Zhang Ping's forces were lurking within Yan Lin's faction, waiting to cause chaos at a critical moment. As soon as he left the city, someone might release Yan Lin from the sky prison, and since Yan Lin is aware of his fate, he might dare to make a desperate attempt to seize power once he is freed from the prison.
Unless, he killed Yan Lin before he left.
But even if he killed Yan Lin, Zhang Ping's people would still wreak havoc. It would take time to uproot this problem completely.
For now, the most pressing matter was to send troops out of the city to block Zhang Ping's forces.
