Xia Lei looked back at the van parked by the side of the road as he drove through the gates of the small neighbourhood. He saw two people from Bureau 101 sitting in that van. ‘Would that killer have simply come here to hurt us if the people from Bureau 101 were not here? How do I defend against him if he does come here?’ Xia Lei was struck by a thought. 

A sense of danger loomed over Xia Lei. He knew too little about that killer and this subdued him. 

His home was quiet; no lights were on. Annina seemed to have gone to bed.

“Get some rest, Brother,” said Xia Xue.

“You go to sleep. I’d like to sit by myself for a bit and think about stuff,” said Xia Lei. 

“I’ll be going to bed then. Don’t stay up too late.” Xia Xue went into her room.

Xia Lei sat on the sofa for a few minutes, then looked for a piece of paper and a pen. He drew as he recalled the killer’s...