The Fiend Prison was the Old Dragon.
It was of course sunless here.
It was as dark as ink and ten miles underground; but there was a faint glow up ahead.
The faint glow was on the other side of the Abyss, in the distant Underworld. It was unclear if it was the fire in the Underworld River, or the eruption of a volcano.
The Chaotic Wind ruffled the Underworld Emperor's clothes, making some rustling sounds.
The colorful clothes had already become black some time ago.
Though he was short, his aura was solemn and dignified, as if he were innately a king.
The Underworld Emperor looked at the Abyss quietly. His home was on the other side, where the rivers he played in as a child were and his loyal countrymen resided.
He looked at it with tremendous affection.
The affection was a sort of power.