Mu Rongche, having delivered the documents to Long Guan City, did not receive a reply from the old king, so he could not directly go to the capital of Ji Yun Country, so he stayed two more days in Long Guan City.
One reason was to bury the guard who had died, the other was to protect the citizens of Long Guan City.
In the two extra days he stayed, he split the guard into two to protect the citizens, and he himself, along with Luo Heng, visited various places to inquire about the timing of the appearances of those poisoned by the Gu and their origins.
He discovered that the ones who had died in Long Guan City were mostly young and strong men, leaving behind mostly the elderly, weak, women, and children, even some grandfathers.