No one knows how long was the reign of Dagrun Stardark or how her empire ended. Few clues remain, and while these are much debated in scholarly circles, no consensus has been reached.
Sages refer to the period as “Stardark’s End.” Among them, it is generally accepted that the dungeon was abandoned until its reinvestment by Faerunduine, and that, as of the beginning of the Wyrmwyrd campaign, no treasures from the age have yet been recovered.
For the mysterious end to the Stardark Empire, I am inspired by the Bronze Age Collapse of our own world’s ancient history. Around 1200 BC, we find in the archaeological record, eastern Mediterranean cities deserted and destroyed, most by fire or other violent means. Trade was disrupted and few written works were produced for a couple hundred years. During this period, called the Greek Dark Age, Mediterranean civilization seems to have taken a break.
Historians and archaeologists have proposed many theories for the cause of the disruption, among them earthquake, famine, war, or invasion by the otherwise unknown “Sea Peoples.” Some are more likely than others. None proved.
So for the moment, we let Stardark’s End remain a mystery. Clues may offer themselves as we play out the wider history of DONJON LANDS.