Tomb Robbery and Bronze Secret Burial

As the train headed north, the scenery outside the window changed from emerald green to withered yellow, and finally to continuous mountains. Li Yan leaned against the window, holding the bronze talisman in his hand, and he was full of doubts: What on earth did his grandfather encounter in Qinling? What does "bloodline" mean? What he didn't know was that at the other end of the train aisle, a woman in a white shirt was staring at the bronze talisman in his hand with complicated eyes. The woman was holding a book "The Secret History of Pre-Qin", with a photo on the cover - the photo was of an archaeological team, and one of the men wearing glasses was Li Yan's grandfather Li Shouyi.