There was no way to ensure that you wouldn't be ambushed after entering. One could only rely on one's skills and abilities to stay safe. Jade slips could not be used to send messages to those on the outside either. However, if several people from one sect all entered at the same time, they would be safe from anything except a brutal, large-scale ambush.
After four disciples entered the opening, Hou Yunfei chose to go in. Just before stepping inside, he asked a favor of Bai Xiaochun.
"If anything unexpected happens to me inside, please take care of my clan Junior Brother, Hou Yunqing." Hou Yunqing was one of the most important younger clan members, although he wasn't a member of the Spirit Stream Sect, but rather, had stayed in the clan to further his cultivation.
