Anthropologist Lu Zhaoye discovered a bronze finger bone engraved with mysterious runes on the border of Yunnan and Myanmar. The identification showed that it was a modern product, but the remains in the bone seams were plant pollen from three thousand years ago. When she followed the clues and came to a Lisu village, the entire village was holding a "ghost sending" ceremony - lying in the coffin was actually her assistant who died in a car accident a year ago.
Heavy rain washed away the mountain road, and Lu Zhaoye found a diary of the 1944 expedition in the cave, recording his experiences of "eating talking bones". The newly carved chemical equations on the stone wall are her unpublished academic results.
When the villagers surrounded her, she suddenly understood that the runes on her finger bones were DNA sequences written backwards. Under the moonlight, those "ghost-sending" masks fell off one after another - every face was a clone of hers.
"So the ghost you were waiting for..." Lu Zhaoye raised the bronze finger bone, "it's me."
The moment her finger bones cracked, the whole mountain resounded with the sound of code deciphering, and the first thing to collapse was her memory from three years ago.
