1374 DR - The Year of Shadowed Hills (RL: roughly 2009-2010)
The Cormyr-Shade War ends with an uneasy truce. Thultanthar retreats to the Anauroch. Tilverton remains in its ruined state, ruled by undead and the shadow dragon Umbra Obscuras.
Thraxata the Flamefiend, red dragon ruler of much of the Thunder Peaks region, is presumably slain. Her daughter, Varyxia, returns from afar and claims much of her territory.
Years later, activity in the area suggests Thraxata may still be alive, simply in hiding or seclusion, possibly working on some scheme, and letting Varyxia keep adventurers’ attentions in her absence to avoid them becoming a distraction. There is no concrete proof, however, and divination attempts provide no confirmation either way.
An enormous Netherese crystal is dug up in the city of Halfhap, following attempts by Shade agents to access or overrun the city during the course of the Shade War prompting further investigation by War Wizards. A demiplanar portal is discovered within, leading to a Netherese Archive of magic and knowledge guarded by elementals and constructs and locked by intricate magical traps.