Stygai

 In the furthest east of the continent of Essos, found in the series A Song of Ice and Fire, there is a vast region called The Shadowlands and a ruined city named Stygai. It's also called City of Bones, Corpse City and City of Night. It's located in the Ash River and in the mountains, and this place is said to be the birthplace of dragons. It's miles away from the port city of Asshai at the coast. Further inland, Stygai is in the vale of the shadow, exactly where the river forks. Nearby is a landscape of ghost grass, so-called because of its long invasive white stalks that poisons other plants. It's believed that ghost grass contains the trapped souls of the dead. Stygai is a ruined city where even shadowbinders fear to wander up there. In Stygai its said there's frightening statues because many such statues that found elsewhere originally came from the Shadowlands. Its believed that the further east from Asshai you go, the more twisted and scary the creatures become. The Ash River itself is black during the daytime but glows green at night, which is full of monstrous creatures including blind deformed fish. The water of the Ash river is too toxic to drink. It's said that the ruined city is haunted but no one has ever come back from there to describe it in more details. The ruined city of Stygai only experiences a little amount of sunlight at noon but spends the rest of the time in dreadful darkness. 

Shadow Girl