At the end of the mass grave, Wei Wuxian blew himself up and faked his death. Lan Wangji rushed into the black mist, holding him as he fell into a bronze crack deep underground. The two traveled from the world of cultivating immortals to Changsha in 1920 - their spiritual power was lost, and both Bichen and Chen Qing were shattered into two bronze fragments. They struggled to survive by swinging hammers in the blacksmith shop, but due to an ambush, they became associated with Zhang Qishan of the Nine Sects, and were involved in a sealing mystery that spanned thousands of years.
The Seven-Coffin Lock Divine Formation deep in the mines, the Bronze Sacred Tree underground in the Qinling Mountains, the empty coffin ancient tomb under the rice fields in Chenzhou, the bronze gate at the bottom of the South China Sea - from Changsha to Changbai Mountain, from the Republic of China to modern times, Lan Wangji and Wei Wuxian spent a full hundred years. In 1950, Wei Wuxian walked into the Bronze Door and was trapped inside the door for decades. Lan Wangji waited outside the door for twenty years, traveling through mountains and rivers and asking spirits more than 3,900 times, just to find the key to open the door.
"All the immortality in the world is vain, but you are the only place where I can find my home for hundreds of years of loneliness."
