Although Li Keer was a little bit confused and continued to search through the tower, she failed to find anything particularly suspicious. Eventually, she gave up the search and left Destiny's Tower with Han Sen.
They went back to crossing the wild dunes of the desert. As they walked, Han Sen continued to spot strange shapes rising out of the sand. None of the shapes seemed to be recognizable, and he had no idea where they might have come from, either.
After they reached an oasis, Li Keer told Han Sen, "The dimensional space here is more stable, so you can open the core area door from here. You won't be dragged into the anti-material world."
Han Sen thanked Li Keer, then tried to open his core door. This time, the core door opened like usual. Han Sen entered the core area again.