The Lord of the Rings: Shadow of the East
Amon Lanc is an extinct cinder cone in southwestern Mirkwood. The complex of caves and tunnels beneath is known to be the home of the Necromancer, a sorcerer of vast and terrible power. His Orcish minions plague the southern portions of the forest. The dungeons of Dol Guldur are rumored to be vast and filled with both gruesome honors and magnificent treasures. Many believe the power in Dol Guldur to be the evil force behind the sudden increase in Giant Spiders, Wargs, Trolls, and Fell Beasts in the region.
Dol Guldur was, for a time in the Second Age, the cheerful home of Drúin’s Folk for a few years after they left their ancestral home and before they moved into the distant East and out of the tales of Men and Elves. The tunnels in the barren cinder cone stood vacant for centuries, until a sinister presence moved into them. The coming of the Necromancer around T.A. 1050 poisoned the surrounding forest, twisting and corrupting the Greenwood until even the Silvan Elves shunned the southern reaches of the forest.