The Company of the Silver Star
History of the Draconic Wars
The Draconic Wars were wide-ranging but the portion around Valdere lasted until just over 800 years ago. As reckoned both above and below, 812 years ago the last great battle was fought and the result was the destruction of the great portal in Valdere-Below and the sealing of the catacombs in Valdere-Above. The Dragonborn left Valdere-Above intact after driving the Tieflings out and the prior servants and serfs rebuilt their community.
In Valdere-Below the final battle resulted in the death of all the powerful magi and their apprentices were forced to enact a ritual to open a new portal to the surface to allow for air and a new source of food. This ritual killed many of the apprentices and burned out many of the survivors leaving the community of Valdere-Below terribly weakened.