Legend of the forgotten

In a world where humans have the most potential , dragons are the strongest, demons are the cunning, elves are the smartest, and giants are the toughest, what would a dark elf be? seen as a cursed at birth and the lowest population, what would they excel in. Jack star is a dark elf locked in a prison by the smartest of the population, elves, condemned to imprisonment for the rest of his life he falls into despair and anger, but cant do anything about it, until suddenly on a dark night with the full moon out, a dark but sparkling orb makes its way to his cell and offers him an proposal in exchange in power. Cover picture isn’t mine