In the Qinzhou antique market, Ma Sanbao accidentally discovered a bronze gun from the Warring States Period, and started a treasure appraisal competition with the stall owner Wang Mazi. The mysterious old man Yao Sanye secretly observed and used code words to prompt Ma Wanshan to see through the mystery of Bronze Ge. There are hidden incisions in street stall transactions, and the patina on the bronze sword hints at the location of a certain tomb. Ma Wanshan unexpectedly showed his talent, and was invited by Yao Sanye on the grounds of "looking at the astrolabe", which coincided with the ruins of the Qin State Observatory during the Warring States Period. The hidden "Guimao" inscriptions on the bronze Ge correspond to the twenty-eight constellations, hinting at clues for the subsequent search for Qin Gong's tomb.
