Fort Umbermoth is a tiny Imperial fort located in the Mephalain Mountains just south of Sailen. It is notable mostly as the destination for Divine Intervention from much of the Sacred East areas.
 Getting there & around
Reaching the fort is as simple as casting Divine Intervention from anywhere between Necrom and Meralag. Alternatively, you can cast Almsivi Intervention to get to nearby Sailen and walk south from there. You will also wind up here if you get arrested anywhere nearby.
 Places of Interest around the Fort
There is very little of interest in this tiny fort, but you can visit the Imperial Cult shrine on the second floor, or if you've been arrested, you can find your confiscated goods in the evidence chest in the dungeon level.
Fort Umbermoth (interiors)