Yun Heng, a historian whose ambition was to inscribe monuments, was exiled to the border by the imperial court. He accidentally came across a broken copper plate with obscure symbols and fractured epics engraved on it. He is obsessed with exploring the lost civilization after Qu Yuan and before the war. He steps into the depths of the wilderness and gradually uncovers a tampered and forgotten myth: the ancestors once built stone cities under the stars to hide the eternal daylight fire. In his journey to pursue the truth, Yunheng encounters the betrayal of his colleagues and the temptation of aliens. He must choose between loyalty to historical facts and protecting the relics. In the torrent of history, can the glimmer of an individual resist power and lies? This book uses the writing style of a historian to outline Yun Heng's search and struggle, showing the afterglow after the disappearance of civilization and the tenacity of human nature, and leading readers into an adventure of thought and belief.