It seemed the mysterious force was unable to sit still on Heartbreak Valley pressuring Zong Zheng Clan and Yin Yang Palace.
By killing Ximen Feng first, it would cause Heartbreak Valley to fall into chaos. It would no longer pressure Zong Zheng Clan and Yin Yang Palace. At the same time, they could focus on dealing with Divine Devil Valley. Once they destroyed Divine Devil Valley, they could then deal with Heartbreak Valley.
All plans were to be carried out when Sima You Yue was away. Because her presence was too big of a variable!
Afterwards, Sima You Yue asked about other matters, but the answers were unimportant.
Their position in Cloud Cave was too low and the things they knew were too few. They would not have known of Divine Devil Valley and Heartbreak Valley if they were part of the agenda.
Sima You Yue took out a dagger and pierced one of them in the heart. After some struggling the person died.