In a soliloquy, the young man tells his father that he has been infected with the same germ that made Rosa so sick. He says that he is sure that he will die before Rosa does. Rosa, he says, has no idea what has happened to him. Rosa asks him why the germ made Rosa sick, and he says that it was just a natural selection. Rosa says that she is sorry that she has to end her life, but that it is God's will that she have to end it