Ling Tianxue and the others heard the incoming sound, looked around quickly, and noticed An Lan was gone. They knew she had gone to The City. She must have heard earlier, and then they realized that the number of people who came over was far less than three thousand.
It seems some had gone to the City Ling Family to kill, but returned empty-handed, only to be eliminated by An Lan in passing.
Elder Zhu and the others felt a bit worried, having killed them would definitely result in unrestricted retaliation. What's done is done, it requires careful planning now.
Arriving in The City, An Lan saw nothing amiss and breathed a sigh of relief. If something happened to Su Ruoxi, Ling Tianyu would definitely retaliate madly, as his family means the most to him.
An Lan did not regret her actions. Even with another chance, she would do the same. Turning the tables on them when provoked is intolerable.