Frankenstein Chapter 16
The monster spent the night in the woods howling his disappointment and anger like an animal. He was angry and vengeful, so "'from that moment [he] declared everlasting war against the species, and more than all, against [Frankenstein] who had formed [him] and sent [him] forth to this insupportable misery.'" Chapter 16, pg. 121
He returned to his hiding place near the cottage only to find the cottage empty. Felix returned with the landlord and explained that the De Lacey family could no longer live there because the blind father's health was drastically altered by the encounter with the monster and that the women would never recover from the horror. The monster burned the cottage in a rage that night and set out for Geneva to find the man who created him and seek revenge for the injustice of his existence. While he traveled, the beauty of nature around him eased the monster's fury until he was shot at after he rescued a girl from a river. The wound received when he was only being kind was the final straw for the monster.
When the monster was near Geneva, he encountered a little boy in the woods. Thinking that someone so young could be taught to love him, the monster planned to kidnap the boy and keep him as a companion. But the boy struggled and threatened that his father, Alphonse Frankenstein would punish the monster, and he realized the boy's connection to Frankenstein, his creator. The monster killed the little boy to get back at Frankenstein. The monster found the miniature on the boy's body and took it because it was of so lovely a woman. He hid in a barn and discovered Justine, the Frankensteins' lovely servant, asleep in the loft. Bitter that a woman as beautiful as she would never care for him, the monster planted the necklace in her dress so that she would be convicted of his crime.
Having finished relating his story to Frankenstein, the monster then laid out the terms of his demands. He said, "'I am alone and miserable; man will not associate with me; but one as deformed and horrible as myself would not deny herself to me. My companion must be of the same species and have the same defects. This being you must create.'" Chapter 16, pg. 129