Leo was curious about the place after hearing Leon say that.
He asked, "But why is such a thing here, in the middle of the forest…?"
"As I said brat, it was a prison for criminals."
Upon hearing this for the second time, Leo asked, "How do you know that?"
Leon shook his head while saying, "I just read the ancient writings on the wall…"
Leo turned his gazes towards one of the walls. It really did have some ancient writings. This further increased Leo's curiosity. He asked, "What does the writing say?"
"Hell Prison."
"Only the words Hell Prison is written on it.", Leon replied.
"I see…"
"But wait."
"How are you able to read the inscriptions?", Leo asked.
"Oof, there is no language in the world that I cannot understand brat.", Leon said.
"But how?"
"Did you forget? I had once become a Beast God. When I did, all the knowledge in the world came flowing inside my head along with all the languages."
"So even with my death, I still knew the languages."