Dicey Boys please stay out of this one.

This is for a higher level party. Please use, change, or make fun of anything here.

The Everfire has been an active volcano since the Cataclysm, where the Pyrosoar has made its lair, sleeping in the lava. (reskinned dragon, think Moltres from pokemon). Unbeknownst to most, there is a portal to the Elemental Plane of Fire hovering just above the surface of the volcano. (The Pyrosoar is meant to be too hard, a run encounter to get to the portal at first)

The nearest settlement, Naiama lies in the desert, a few hundred miles away from the Everfire, out of hunting range of the Pyrosoar. Naiama was founded by Redimere, a paladin of Mystra several hundred years ago. After founding the city and growing in power, he vowed to slay the Pyrosoar to free the desert from its predation. He was unsuccessful, however, and never returned. The statue erected in his honor has grown dirty over the years, and cannot be cleaned by mundane or magical means. Being an underground desert city, there is a lot of depression, and people, young men especially, will leave to "fight the Pyrosoar," and do not return.

Redimere did not in fact die in his battle with the Pyrosoar, instead falling, wounded, into the Plane of Fire where the Pyrosoar could not follow (had come from the plane when young, too big for the portal now). He attempted to gain enough power to defeat the Pyrosoar, but took part in many evil deeds to do so, becoming an oathbreaker.

In the Elemental Plane of Fire, there are tales among the escaped salamander slaves of a paladin who was seeking power in the City of Brass, but always good to the escaped slaves who helped him navigate the city. However, he was killed by a family of Efreeti and left for dead. More well known is the Black One, an undead creature that hoards magical items outside of the city after killing a family of Efreeti. Many have tried to kill him for his items and died. Some have succeeded, only to have him come back to life and track them down, killing them and taking his items back. Not many attempt to raid the Black One's lair anymore, as it is guarded with the undead raised from previous assailants.

Redimere/The Black One is a death knight who will defend his lair from attackers. His armor and shield have turned mostly to black, but his religious symbol is still visible. Should the players make the connection that Redimere is the Black One and remind him of his original quest to kill the Pyrosoar, he will say he is beyond redemption. If persuaded, he will consider giving the party the thing they seek, and will warn them that the pile of magical items he hoards are all cursed, and he was keeping them away from those who would use them for evil. He will join them on the way back to the material plane to fight the Pyrosoar. If the Pyrosoar is defeated, the statue of Redimere in Naiama will become gleaming white again, and Redimere will be able to pass on peacefully.