Pei Jiulang, the middle-aged retired chief minister of Dali Temple, returned to Chang'an because of a bizarre painted skin murder case. The golden section of the knife edge behind the ears of each corpse, the Fibonacci sequence between the ribs, the Persian gold powder in the nail polish, the mandala pattern on the throat cartilage, and the golden spiral formed by the palm prints. These strange clues actually point to the unsolved mystery of Xuanzang's sutra translation site twenty years ago. Pei Jiulang joined hands with the cold and aloof female widower Su Hexiang, and with the help of Shen Tianfang, the head catcher with strong martial arts skills, they peeled off the cocoon and uncovered a series of shocking conspiracies. Prince Li Xian silently supported Pei Jiulang's investigation behind the scenes. As the investigation deepened, they discovered that there was a greater secret hidden behind it, which was closely connected with historical mysteries such as the missing fragments of Xuanzang's Buddhist scriptures and the cipher text tablets in the Big Wild Goose Pagoda underground palace. Can Pei Jiulang uncover the truth and bring peace to Chang'an? A thrilling detective journey begins.
