Secret History of Archaeology: Strange Records from the Abyss

My uncle, who had been missing for ten years, suddenly reappeared and dragged me into a bizarre quest to explore a prehistoric civilization. Who exactly were the “big-headed people” hidden deep underground?

Following clues left behind by mysterious ancients, we searched along the way... Where had these highly advanced people come from, and where had they gone?

What was hidden in the cloud of smoke at the center of the lake? Why did I wake up in another village that looked exactly the same?

Ancient legends, mysterious religious rituals... Everything we experienced felt as though it had happened many times before...