War of the Silver Marches

Military action

"Though we have not received a prophetic warning, it would seem war is upon us. Once again orcs descend from the Spine of the North to assail the region. But this time they are joined - if not led by - drow who use a magical darkness to shroud the battles in lasting night. Worse yet, they are aligned with frost giants and rumored to even have two white dragons who lay waste to the dwarven armies by lines at a time. It may come such a time as Avraathe may have to move to action despite the Platinum Dragon not directly ordering such a response." | Councilor Rethdar of Clan Dradke, High Priest of the Temple of Bahamut

The drow wizard Tsabrak Xorlarrin channeled the Darkening upon the Silver Marches under the orders of Lolth in order to prepare for the war.   Sundabar was conquered by an orc army commanded by the warlord Hartusk and renamed Hartusk Keep. All dwarfholds in the area—Citadel Adbar, Citadel Felbarr, and Mithril Hall—and later also Silverymoon were besieged.