Some say that the yellow loess city you faintly glimpse during a nocturnal sandstorm is actually the ghost of Yumen Pass. Known as the "Sea of Death," the uninhabited region of Luo Bu Po conceals a major secret from the Han Wu Di era. Even though the ancient Yumen Pass has long been weathered into sand, it mysteriously coalesces and takes form during nighttime sandstorms, allowing passage for certain special individuals. The author demonstrates broad vision and imaginative flair, with mature prose that skillfully weaves verifiable historical facts into an eerie narrative spanning vast time and space, crafting a modern tale of adventure filled with wonder and establishing a uniquely crafted, otherworldly realm that is highly engaging.