Mystwood is a huge, dark forest that encompasses the eastern third of the Northlands, west of the Saugreth-Muir Mountains. It is located east of the Pale.

Mystwood was once a shining elvish civilization called the Silvarwood; now it is a cursed and haunted place of fear and dread. For years the woodland was the home of the Wood-Elves of Corwyn, who built a great civilization deep within the forest, and also upheld their solemn oath to keep vigil on the East and on the activities of Alokkair the Sorcerer. It was because the Wood-Elves did such a fine job of keeping vigil that Alokkair plotted against them and ultimately destroyed their homeland. When he did so, the entire forest became a cursed place, and even today, only the strong-hearted enter there willingly. Reports of demons, undead spirits, and bands of orcs, trolls, and other creatures have made Mystwood one of the most feared regio western Corwyn. Today, bands of orcs from Morgoth freely cross the Saugreth-Muir through several secluded passes, and raid the Pale.