Clues

Mu Hui drove to the moat.

At that time, the masked man in black had escaped, but he was still injured at that time.

She took out a flashlight and searched the place where the masked man had disappeared. As expected, she saw a few inconspicuous dots.

She was a top-tier killer. It was a piece of cake for her to track down an injured person.

Under the high intensity of the flashlight's halo, she could easily determine the distance and angle of the person from the blood drops. She could deduce the movements of the escaping person from close proximity, so as to have the direction of his departure.

Then, she could find the escape route of the person.

Soon, she tracked down an old building next to the alley.

The old building seemed to be uninhabited, but there was still an extremely weak light that could be seen from a window on the second floor.