On the 7th Day of the month of Rhaan Year 998, A group of individuals managed to stop an army of led by a Half-Dragon Hobgoblin and foil the plot to unleash Overlord Tiamat from her city-sized dragonshard prison in the Pit of Five Sorrows in Argonnessen.
However, the plans of the Khyber overlords is far reaching and this is but a small step in an intricate plan to free the Daughter of Khyber. The Lords of Dust are on the move, and the Dragons of Argonnessen are watching, waiting for the time when intervention is necessary. Should the Dragons intervene, civilization in Khorvaire would be annihilated in one fell swoop; A repeat of what happened to the civilization of Giants in Xen'drik thousands of years ago.
All hope is not lost though. The Chamber is fighting against the Lords of Dust in the shadows. With the draconic prophecy of slowly showing unraveling itself, both sides are manipulating it to the most favorable outcome. And you are in the middle of it all.