She looked around carefully and didn't miss every corner. The walls were all repaired, and there were traps that couldn't be hidden. The furniture was all modern. The only thing that didn't move was the ground.
Not only did the ground here not move, but also the whole house of the Rong Mansion did not move, because the ground was paved with the same golden bricks as the one in the Forbidden City. In order not to damage these invaluable antique bricks, the ground was covered with thick carpet for protection. Anyone who came in must change into soft shoes. High heels and hard shoes were absolutely prohibited.
Step by step, Hazel gently stepped on it. She once saw it on TV drama, that the sound would be different in the place where there was a secret passage. It might be reasonable. The sound would be clearer if the entrance was empty.