Shen Qianqian saw that Ye Mo wasn't in a hurry to go out, so she didn't go yet either. However, when almost everyone had left and she saw that Ye Mo still had no intentions to go, she said goodbye and left first.
Ye Mo's spirit sense was locked onto that man. He had a camera hanging around his neck, but Ye Mo knew that the camera was hollow and had a small bag inside. His spirit sense couldn't see through it, but the bag covered something a bit larger than a fist.
It wasn't the first time Ye Mo encountered things that could block spirit sense. The first time was that wooden cupboard in which the woman in the ghost building had been. And now, this camera also had a small wooden box inside.
The man seemed to sense that someone was staring at him, as he looked around before going into the hall.