The origins of the Underworld.
Cain sat on the ground facing Steve. They both stared straight at one another.
"Ahem... Before I tell you this, you must swear by all the gods, old and new that you will never disclose this piece of information I'm offering unto you!" Steve said, his voice serious.
"Or at a bare minimum, don't tell anyone I told you anything..." A sly grin played at the corners of his lips.
Cain just rolled, "Alright... Get to it already!"
Steve cleared his throat before he began...
"After the war a thousand years ago, violence around the world had reduced by about 90%."
He continued after he saw Cain paying close attention, "The war had left the world in ruins, but from these ruins, the basis of this new civilization was built. However, just like many times in history, humanity never forgets its roots. Various memoirs of the past had been dug up and discovered from the ruins of the desolate civilization."