Jing Jiu didn’t knock on the door, instead pushing in a green brick into the wall half an inch.
This was a mechanical system.
Jing Jiu could vaguely hear a hard object rolling behind the door. Though he couldn’t see through the wooden door, he knew it was a stone-ball rolling on a groove, rolling some distance and falling down on a ceramic bowl, which would break when being landed on.
The wooden door hadn’t opened after a while.
He waited on the stone steps, a peaceful expression on his face.
The rainfall got heavier. The raindrops falling on the conical hat streamed down from the edge of the hat like a waterfall during dry season.
The passersby in the alley walked fast in the rain, taking no notice of him.
The courtyard door finally opened with a soft clink, an elder emerging from inside.