Two-headed man

After Hiram Irwin determined the direction, he headed south and soon he saw some ancient but dilapidated buildings.
"What kind of people originally lived in this world?"
Hiram Irwin looked at those buildings and felt that there was a powerful and long-lasting aura in them.
Hiram Irwin did not fly directly to those buildings, but slowly descended and landed in the dense jungle nearby. He did not want to encounter any unknown and terrifying things like last time.
"Huh? There's someone!"...