Mindstalker Wars

The Mindstalker Wars are fought between the illithids of Oryndoll and the dwarves of Shanatar. They begin when the illithids attack the eastern subkingdoms of Shanatar in -8100 DR. The illithids are driven back, but in their wake the surviving Stout Folk discover that the caverns of Barakuir, which had been cut off in the early days of fighting, lie empty. Clan Duergar had been carried back to thralldom in the mind flayers' realm. The war lasts until -8080 DR.