This book explains how the walls of Liangzhu City were made from bedding stones and mud, with the total area of bedding stones covering roughly 290,000 square meters. Based on ongoing research and studies, the book tells the story of how these stones were collected from the surrounding mountains and how their mining and use required massive manpower and material resources, indicating what a tremendous undertaking the construction of Liangzhu City was. The book also shares insights into the process of discovering and researching the city wall, as well as the stoneware at the Liangzhu historical site complex.

Xiang Ji graduated from the School of Earth Sciences and Engineering, Nanjing University. His main research interest is in geochemistry. He became a researcher at Zhejiang Provincial Institute of Cultural Relics and Archaeology upon graduation and has participated in research programs on the Liangzhu Archaeological Site since his postgraduate studies. Recent research programs and published papers include "Study on the Properties and Origin of the Stones Used in the Manufacture of Stone Artifacts in Liangzhu Archaeological Site," "Restoration of the Paleoenvironment Outside the Ancient City of Liangzhu," and The Characteristics and Provenance of the Sr-Nd Isotope in the Liangzhu Remains and its Significance in the Extinction of the Ancient Culture.