C117 Nine Questions

The sixth stone room's stone door was also closed and could only explode.

Zhang Shukai had gone out for a while and brought back the necessary items needed for the GPS explosion. At the same time he placed the explosives, Lyu Jiahui used the Mos password to knock on the stone door as usual. She tried to get in touch with Zhao Ying and the others, but there was no response from the stone room