Xu Shan left the underground floor, noticing many signs of destruction.
It was clear that some of the people that were freed weren't good people. They didn't just try to find the Empress, but also killed everyone that they came across.
Along the way, all the Guards were dead. Even the maids and servants were slaughtered. Hallways were damaged, showing clear signs of battles.
Xu Shan didn't care about the lives of these people. If anything, this was exactly what he wanted. These people were going to keep the Empress when she returned, while he could finish what he was here for.
If anything, more than the deaths of people in the Palace, he was concerned about the Woman in the Consciousness who was about to tell him something before she disappeared.
After climbing the stairs, Xu Shan reached the first floor. With the entire palace in chaos and deaths everywhere, he didn't come across any guards on the way. His entire journey became much easier.