For the failure of these powerhouses from the Sky Wasteland domain of the Demonic Way, they don't have many options. Almost their only way to survive would be to assassinate Xue Wuheng and complete their mission before the powerhouses from Sky Wasteland come to question and accuse them; that would enable them to make up for their previous mistakes.
That's why they bewitched Yang Yongxiu to try to assassinate Xue Wuheng but failed, also incurring significant losses.
"If it were merely Yang Yongxiu causing chaos, Bai Xiaosheng and the others would naturally dismiss it. However, the other party has colluded with the people from Sky Wasteland, they have undoubtedly violated the taboo of Pei Xuanjing and the others, Bai Xiaosheng would definitely not tolerate it." Xue Wuheng confidently said.
He has heard a bit about the events on Dragon Tiger Mountain and has a clear understanding of Bai Xiaosheng and the others' attitudes towards those who have returned from Sky Wasteland.