After Qin general Sima Cuo pacified the state of Shu, the spirits and craftsmen left behind in King Cancong’s temple were brought into the Qinling Mountains. More than two thousand years later, Wu Zhu and Lin Qi discovered countless people pouring into the mountains, all claiming to be searching for the “flower of the immortals.” Wu Zhu led her team toward the most dangerous place in the Qinling Mountains, Yellow Springs Valley. Along the way, she realized that some creature seemed to be watching her strange group. It might well be a spirit left behind from the age of Cancong...