The land of Greenfork consists only of the Castle and Island. Little is known about Greenfork.
Spoiler: Following the Princess' dealings with the old man and Hyath, she awakens in the tower of Greenfork Castle. After a few days of slipping in and out of consciousness, she is greeted by a man who claims to be her father, the King, who was once thought dead. Following an eventful dinner party, a note is found in her dresser that requests a meeting outside of the castle. She is escorted to Greenfork Island by Anden and informed by Master Nathan that everything seen within the castle is merely a ruse by the Dhorn. The Princess is given the choice to flee, or see the Dhorn plot through.