death's right hand: The Death Bringer

a meeting with Dumbledore and exploring the common room's different rooms

Y/N pov:

I knock on the door and wait for permission to enter which I hear calm ' enter ' on the otherside of the door. I look around the visible space of the room of Dumbledore's office which fits role of being a headmaster's or headmistress' office. I spot a phoenix on a bird stand with a pan shaped like a muggle gold straining pan. I finally look at Dumbledore who is in a high backed chair behind his desk with a kind smile gesturing to the chair in front of his desk.
Dumbledore: I have been given permission from an old friend of mine who is named Nicholas flammel to keep a stone known as the philosopher stone safe here at hogwarts and I want you to be added security to the path to the stone. Will you help keep it safe?
I take in the information that Dumbledore gave me and nod.
Y/n: I'll help and I could patrol the corridors each year to help as security at night with some of my forces as well.
Dumbledore shows me a map of the route that has obstacles protecting the stone and I choose to be between professor flitwick's and professor McGonagall's obstacles. I leave his office a few minutes later and return to my common room in the dungeons by using the flame teleportation that I was surprised isn't blocked by the charms and spells to stop anyone who isn't the headmaster from apparating around the school or into/out of the school.

I go in the hallway towards the Gravemind room and see it is surrounded by decaying flesh with a greenish colored smoke or fog.

I go to the Gravemind room and see a pit in the middle of the room. As I get closer I hear a shifting sound from the depths of the pit and a giant tube of flesh and muscle rose from the depths.

Gravemind: the death bringer returns. It has been thousands of years since your family had a true death bringer enter into this chamber.
After speaking with the Gravemind for a while I exit the chamber and go to the  throne room and see it is long walk to the chair at the end. The room had black or burnt stone pillars with lava flowing down from the ceiling.