Thanks to the Thousand Appreciation from Weideng Xiajian

"Two lunatics!"

Both of them had gone inside, making Curly Hair, waiting alone outside, look like the sick one.

Gritting his teeth, he jumped over the threshold and followed Gu Mian and the other, who had not gone far.

Once they stepped through the entrance, dust accumulated on the floor drifted up beneath their footsteps. Curly Hair covered his nose and suppressed the itch in his throat.

The shop was small. Beyond the lobby on the first floor, there were only two rooms.

The room doors had long since fallen into disrepair.

The fat man switched on his flashlight and shone it into both doorways, finding that one room was a kitchen and the other a restroom.

The blood trail did not lead into either room, instead heading in another direction through the lobby.

The three followed the bloodstains with their eyes and discovered a staircase in that direction.

"They went upstairs." Gu Mian walked over to the stairs.

"Doctor, look!" The fat man pointed out a spot on the wall beside the stairway entrance for Gu Mian to see.

Someone had left a line of writing there in marker—"Don't go upstairs."

There was even a large exclamation mark at the end.

The handwriting was messy, as though it had been hurriedly scrawled there while the writer was being chased by something. Half the words were covered by a bloody handprint.

"Who wrote that?" Curly Hair's scalp prickled. "Could it have been the person who went upstairs?"

But writing "Don't go upstairs" while running up the stairs was far too bizarre.

The fat man studied the four words for quite a while. "It isn't Young Master Chu's handwriting or the others'. Some stranger left it."

"The bloody handprint is over the writing," Gu Mian said. "Someone wrote this here first.