As Xue Lingxue descended the stairs, she felt a special frequency of electromagnetic waves sweep across the nearby area.
Her heart gave a slight start, and she instinctively took a step back.
"This person has a strong electromagnetic field and soundwave detection ability, and can become optically invisible!"
With the help of her exoskeleton armor, Xue Lingxue carefully concealed her own qi and magnetic field, while she released three tiny drones, the size of fingernails, from her arm into the fourth-floor corridor.
Before long, she saw the images from the corridor ahead through the imaging system inside her helmet.
The opponent was cautious, using optical invisibility even during combat. It was only through AI image reconstruction that Xue Lingxue saw a man in a long coat, tall and slender, engaging in wanton slaughter in the corridor.
