Shar, 'Mistress of the Night', 'Nightsinger', 'Lady of Loss', or 'The Darkness' is a fictional deity in the Dungeons & Dragons Forgotten Realms campaign setting. She is the evil counterpart to her twin sister Selûne, and presides over caverns, dark, dungeons, forgetfulness, loss, night, secrets, and the Underdark. Shar is an ancient goddess, formed together with her sister at the beginning of time, out of the empty nothingness that existed before gods or mortals. Among her array of twisted powers is the ability to see everything that lies or happens in the dark.