I will tell you about Ch. 2 of Greek Myths ‘Demeter and Persephone’. Well Hades really wants to marry Persephone. So one day while Persephone is out picking flowers when Hades comes up from the underworld he grabs Persephone and takes her with him back into the underworld. Demeter, her mother, is panicking. She is asking everyone where Persephone is but no one tells Demeter. It is too sad. She finally went to Apollo who saw everything. He told Demeter Persephone was in the underworld. Finally Hermes comes to get Persephone. Demeter is so happy only then something happens that make them so sad. You can find out what that is in Greek Myths.