The One Ring: Fellowship of the New Alliance
Described by many as “the greatest of the forests of the Northern world”, Mirkwood is a sea of woodland measuring more than 400 miles from north to south and 200 miles from east to west, at the point where the Old Forest Road crosses its width. It extends across the very middle of Wilderland, and its presence has shaped the history of the region for centuries. Nobody knows exactly what lies within its borders, as no one has thoroughly explored it.
The days when the Elvenking enforced his rule over all of Greenwood the Great are long gone, and the wild wood has reclaimed its hundreds of streams and shadowy vales, its clearings, bogs, hills and mountains. The creatures that inhabit it have become “queer and savage”, as Beorn once put it, like the ever-present black squirrels, the thousands of black moths that crowd around any traveller carrying a source of light, and the hundreds of black butterflies that fly above the tree-tops. Many darker things have descended from the mountains that rise in the middle of the forest and have issued out of the pits of Dol Guldur, to breed and multiply in the dim shadows.
Fortunately for all who live near its edge, the forest has grown less dark since the Necromancer was driven from his stronghold in the south of Mirkwood, and some think that it will soon be possible to open the Old Forest Road to traffic once again.