The Catacomb

Leone waved her torch around, burning away the webs in the cramped catacomb. In the chamber she could see a set of oversized staircases leading downwards, flanked by marble statues of lions. All tomb prospectors knew that the deeper beneath Virtannis one goes, the older the ruins. Leone stepped down carefully as to not cause a cave-in, leaving a chalk mark on the wall.
In the torchlight below she was surrounded by more than a few beasts, but these were small and feared flame. The room was built of polished white marble, covered in dust and the bones of beasts, but intact. Along the walls were carvings depicting some great cataclysm. Warriors dueling on a strange city. Three eyes in the sky looking down on it all. And at the bottom, six words in elvish script. Memento mori, Iudex Fiede, Per Aspera, Non Servitam... the named continued, but she didn't bother reading them all.
Interesting to a scholar, surely, but Leone was a prospector- here for treasure- and so she gravitated towards a long narrow coffin in the center of the room. Hanging above it was a gigantic clear crystal. Much too large to carry out, but she figured she would take a chunk back with her. Leone pulled out her pickaxe and climbed onto the coffin, giving it a big swing. As the pick deflected off of it, the entire crystal glew bright orange and released a terrible droning sound. Leone fled back to the staircase, but turned to see what would happen next.
Beneath the crystal she saw a transparent floating image of a tall and slender man all dressed up in a strange military uniform- and facing right at her. She spoke out to it. "Who are you? Are you an elf? Like the man in the dream?"
The figure replied, soft spoken and almost feminine in its gracefullness, "I am the Keymind Personality Core known as Ambrogio. I was an elf, but no longer."
"What are you?" Leone leveled a pistol at the hologram.
"I just told you what I am." The Keymind said.
"Give me a little context here." Leone waggled the gun at him, but he either was not intimidated or didn't know what it did.
Ambrogio shrugged. "It would take some time to explain."
"I've got time." She lowered her pistol.
"By my calculations, you have as little as 45 years left before you die. By all accounts, you are near death. You should spend your time more wisely."
"You're starting to sound like that old man now."
"What old man?"
"The old man in the dreams. Ovroc."
"He lives?" The hologram rushed towards Leone, she fired her pistol at him ineffectively. He tried to grab her shoulders, but his hands passed through them. Leone fell backwards onto the steps. Ambrogio's orange figure towered over her. "Do not trust him. He is not who he seems."
"I'll believe you as soon as you start explaining what the hell you're talking about."
The hologram sat itself on the staircase and spoke, "It all started when the sun appeared.....