Dark Metropolis: Planetsong

Dark Metropolis: Planetsong is the story about the planet Celesta. She is dying and she sings to her sister planets to save her children. One of her sisters, Gaia takes one of Celesta's children called Cha'Lan to help her fight a war between her children "The Olympians" and the "Ancient Old Ones" in a city called Dark Metropolis.