In the third and fourth part, tells the story of Fantine, a girl who falls in love but is suddenly left by her lover while she is pregnant.Disconsolate, she decides to give a decent education to her daughter whom Cossette calls.But the single mother's life is harder than she expected and the finances are not enough. He then asks his family to take care of the child. This new situation transforms the life of both, the family demands a lot of money to Fantine for the care of its daughter, at the same time that they mistreat and they overwhelm to Cossette.