They bypassed piles of waste—cardboard boxes, wooden planks, and canned glass jars—finally coming to a stop before a dilapidated wooden door.
Lin Qi raised his hand and knocked. A few seconds later, the light outside the courtyard flickered twice. He knocked again: three quick raps, followed by two slow ones.
As the knocking ceased, there was a commotion behind the door. Someone unlocked a metal gate from the inside, pushed the wooden door open, and turned sideways to let them pass.
Chapter 23