Demeter has a girl and her name is persephone and loves her.
hades looked at persephone and thought hmm...yes i will take her from demeter and will be the queen of the underworld
when hades have taken persephone. demeter was looking for persephone but couldnt find her so she was sad and as soon the tree leaves were starting to fall off.
when demeter was still looking for persephone a man told demeter that her brother hades has taken her so she can be the new queen of the underworld.
demeter told zeus that hades has taken her daughter and wants her back so zeus sent hermes to tell hades to give her back but one thing is that persephone ate one of the dead food and now persephone can stay with her mom in the summer and the spring and ih hades in the winter and fall
this is demeter when she is happy and when she is not happy