Found

On the other side, Leng Shuang had sneaked in from the back and concealed her breath. She took advantage of the night to explore and search inside. 

She hid in a tree and her eyes swept across the ground below. In addition to the guards out in the open, she also sensed the secret guards hiding in the shadows. Moreover, there was also a spirit consciousness in the air. 

In other words, even if there was no one guarding the place, if there was any movement, because the place was shrouded with spirit consciousness, the person who had deployed the spirit consciousness would know. 

Of course, the spirit consciousness was only useful for people who were weaker than him. For someone as powerful as her, her opponent's spirit consciousness would not be able to detect her presence at all. 

She glanced down and took a look around, then jumped down from the tree. Instead of searching around without any clue, it would be better to catch someone to interrogate.