C518
Huo Mingzhu swept the torches on the stone door non-stop, and did not discover anything, but Su Lv did. She called out to Huo Mingzhu, "Empress, come out."
Huo Mingzhu was suspicious, but still walked out a little according to the way she said.
Su Lv said, "Hold up the torch."
Huo Mingzhu did as he was told.
In the middle of the stone door, there was a depression