Thousands of years after the disappearance of the ancient empire, Shen Yunzhao, the queen of a famous northern family, unexpectedly discovered a clue about the lost civilization "Falling Shadow Kingdom" through his father's lost ancient scrolls. He formed a secret exploration team with Alan, a foreign girl from the Western Regions, his childhood friend Lu Zheng, and Gaoshi Baili Shu, and embarked on a journey to trace the ruins of the ancient country. Along the way, they traveled through deserts, snowy mountains, and underground labyrinths, cracked mechanisms, and were pursued and framed by Li Wuji, the leader of a family of tomb robbers. As clues are gradually revealed, everyone discovers that there is a shocking secret hidden behind the demise of the Falling Shadow Kingdom - the entanglement between ancient artifacts and human greed. After countless tests of life and death, team members made choices between faith and desire, and finally completed self-salvation in the ruins of a lost civilization, and also brought the dust-laden historical truth to light. The novel depicts adventure, conspiracy and the game of human nature in the style of ancient legends, showing an epic journey of courage, wisdom and sacrifice.