Rise of the Runelords
Jorgenfist is a fortification built in the Iron Peaks, a location taboo to giantkind known as the Valley of the Black Tower. Mokmurian has made the fort his headquarters and is amassing his army there, despite the taboo. The Black Tower itself, at the heart of Jorgenfist, is believed to be a Thassilonian ruin. It is said that Mokmurian spends his time in catacombs below the tower, where his followers cannot tread.