Mr. Liu picked up the paper and motioned for him to follow him into the study. The study was lined with books on two sides, in various conditions. A calligraphy painting hung on the wall. After they entered the study, Mr. Liu smiled mysteriously, spread out the paper, picked up a fine brush, marked a small dot in the bedroom area, and another black one at the innermost part of the study. He thought for a moment, took a blank piece of paper, and wrote that only he and his wife knew about these secret places and they could be used with confidence.
Zhou Xiaozheng understood the old man's purpose from the moment he entered the study. After finishing reading, he nodded, cupped his hands to thank the elder, and carefully folded the paper, placing it in the pocket of his inner clothes.
