```
Time quickly passed, and several days had gone by.
The caravan had been waiting at the Black Wind Pass for quite a while, but the leader still showed no intention of entering.
They hammered a circle of yellow metal spikes into the ground around them and scattered a lot of pale green liquid, drawing a circle of green lines on the ground. It emanated a strange odor.
Every day there were people busily doing something outside, as if they were on guard, or possibly measuring something. They kept moving back and forth, stopping and starting again.
Ma Yuan and the others huddled around a bonfire they had made in the middle of the caravan, warming their hands.
Seeing Bao Luofei coming down from a carriage, Ma Yuan stood up, smiling, and said.
"I thought we'd have to wait a bit longer, but it looks like we can roughly head in today. We're all getting ready, prepared to enter the valley at any moment."