There were also a few individual students who had just dismounted from their camels and taken a few short steps, only to have their feet sink deep into various sand pits...
"Teacher, what is going on here? Could this be quicksand? This is too dangerous. Can we go back? The desert is really no fun at all." Several students who had stepped into the sand pits complained resentfully.
"Please rest assured, students, this area is very safe. Outside of the off-season, quite a few people still come here. These are probably sapling pits dug earlier when someone organized a desert greening and tree-planting event..."
Chapter 228