Once, there was a beautiful and expansive land of forests and meadows known as the Brightwood. The hereditary lords of the land ruled it wisely and protected all who dwelled therein. Their castle was known as Brightkeep.
During the reign of the witch-king Corwin, the lords of Brightkeep fell out of favor with the court. For they were noble and brave and honourable and so had no place in Corwin's court. The Brightwood itself grew darker and wilder as beats unchecked by Corwin's knights made their way into the forest.
Some years before the end of Corwin's reign, the Green Witch came to Brightwood. None know her name or from whence she came. Some claim she was Corwin's sister. Some his lover. Some his daughter. Whatever her origins, she was as beautiful as she was cunning and powerful. She seduced Prince Justin and through him, the land. Fell Beasts claimed the forest as their own. The survivors fled to the shelter of the Brightkeep. The Green Witch then went to Brightkeep and placed a curse of eternal sleep on all within the castle. Only Prince Justin escaped her spell. He fled the Brightkeep taking Silvermoon, the great axe of his family with him. The Green Witch claimed the Brightkeep as her own and transformed it into her own dark tower. The land became as black and twisted as her magic and came to be known as the Blackwoods.
Prince Justin arrived at the Court of Corwin seeking allies against the evil witch who had stolen his kingdom. instead, he found that Corwin's court was peopled by villains. The Prince fled Castle Avalon and rebelled against Corwin's reign.
After the fall of Corwin, Prince Justin returned to the Blackwoods. With the aid of stalwart and true allies, he drove the Green Witch from the Brightkeep and reclaimed his kingdom. The land became once more green and pleasant and is once more the Brightwoods. Now, it is but a tiny land with an aged lord striving to keep the darkness from its borders, but unable to do more than protect itself.
The fate of the Green Witch is unknown. Though it is said Prince Justin slew her with Silvermoon, a beautiful and deadly witch in green has been seen throughout the realm.
(Thanks to Jim Smith of ACN 2001's "The Witch-King of Avalon)