Perched precariously on a narrow outcropping, Castle Craystone dates from after the Blizzard War. No one knows if it had a proper name, and the current label comes from its drab, gray walls.
Adventurers explored the castle in the past, but found nothing of value or interest. However, those who have stayed overnight reported hearing a ghostly voice and seeing strange lights. These days, people avoid the castle, fearful it is haunted.