There Is Another Empire Underground

A geological genius whose parents were scientific expedition members, he disappeared on the Qinghai-Tibet Plateau when he was 12 years old, leaving only a notebook filled with strange symbols. He chose geology as a postgraduate entrance examination and Ph. D. Because he wanted to find out the truth behind his parents' disappearance. The symbols in that notebook were later found to be 30% similar to the characters of the Dimai tribe.