Lin Yan squatted on the attic floor of his grandfather's old house. His fingertips brushed against the yellowing cotton wool in the camphor wood box, and suddenly he touched something cold and hard.
Rain leaked from the attic, and the musty smell mixed with the smell of aged wood enveloped him. For twenty years, he only dared to look at this box but not touch it - his grandfather Lin Zhengshan took the contents of this box to the Qinling Mountains and never came back. When the police searched Longmian Valley, they only found half of the compass stained with soil, and the only word left was the word "missing."