This page refers to the location, you may have been looking for Darkling Woods (chapter)

Darkling Woods is a forest found in the eastern region of Magvel in Fire Emblem: The Sacred Stones. It is the home of the Manaketes Myrrh and Morva, the Great Dragon.

It is where the Demon King Fomortiis was defeated both by Eirika and Ephraim as well as his first defeat by the Five Heroes. It is said that even though his soul was trapped in the Sacred Stones, his body dreams for when his soul is free. Lyon came to the forest to awaken Fomortiis in the Black Temple. It is said that the blood of the monsters corrupted the forest and its inhabitants, making the forest a dark and horrific place full of all sorts of monsters. The penultimate chapter is fought in Darkling Woods, and the last is in the Black Temple, which is located in the woods. This is also the place where one must come to awaken the Demon King. It is also a sacred monument of the people of Caer Pelyn, as they worship the Great Dragon(s) Morva and/or Myrrh.