The De Laceys' flight

The De Laceys' flight marks the irreversible rupture of the monster's hope for human companionship and the moment his nascent benevolence curdles into a conscious, declared war against all mankind. After months of secret observation, self-education, and anonymous acts of kindness toward the family he had come to love, the monster finally attempted to introduce himself to the blind old De Lacey, hoping that the father's mediation would win him acceptance. The attempt failed catastrophically: Felix, Safie, and Agatha returned home mid-conversation, and Felix, seeing the monster at his father's knees, tore him away with supernatural force, dashed him to the ground, and struck him violently with a stick. The monster, though capable of destroying Felix, refrained, overcome by pain and anguish, and fled unperceived to his hovel.

The Aftermath and the Decision to Abandon the Cottage

The following day, the monster waited in his hovel for the family to appear, but the cottage remained dark and silent. Presently two countrymen passed by, speaking the local language, which the monster did not understand, but soon Felix arrived with another man. The companion asked Felix whether he would be obliged to pay three months' rent and lose the produce of his garden, urging him to take several days to consider his determination. Felix replied, "It is utterly useless; we can never again inhabit your cottage. The life of my father is in the greatest danger, owing to the dreadful circumstance that I have related. My wife and my sister will never recover from their horror. I entreat you not to reason with me any more. Take possession of your tenement and let me fly from this place." Felix trembled violently as he spoke. He and his companion entered the cottage for a few minutes and then departed. The monster never saw any of the De Lacey family again.

The Monster's Despair and the Birth of Revenge

Left in a state of utter and stupid despair, the monster felt that his protectors had broken the only link that held him to the world. For the first time, feelings of revenge and hatred filled his bosom, and he did not strive to control them. When he thought of De Lacey's mild voice, Agatha's gentle eyes, and Safie's exquisite beauty, tears soothed him, but the memory of their spurning and desertion returned his anger. Unable to injure anything human, he turned his fury toward inanimate objects. As night advanced, he placed a variety of combustibles around the cottage, destroyed every vestige of cultivation in the garden, and waited with forced impatience until the moon had sunk. When the moon touched the horizon, he lighted a dry branch, danced with fury around the cottage, and with a loud scream fired the straw, heath, and bushes he had collected. The wind fanned the flames, and the cottage was quickly enveloped, its destruction complete.

Consequences and Significance

The De Laceys' flight and the monster's subsequent burning of the cottage constitute the event that transforms the monster's character from a being capable of love and virtue into one dedicated to revenge. He later tells Victor, "I was benevolent and good; misery made me a fiend," and explicitly traces his turn to the rejection by the cottagers. The loss of this family—the only humans who had ever shown him kindness, however indirectly—convinces him that no human will ever accept him, and he resolves to seek out his creator, Victor Frankenstein, to demand a female companion as the only possible remedy for his solitude. The event also directly precipitates the monster's journey to Geneva, where he murders William Frankenstein and frames Justine Moritz, setting in motion the chain of destruction that consumes Victor's entire family. In his final confrontation with Walton, the monster still recalls the injustice of Felix driving "his friend from his door with contumely" as a foundational grievance, demonstrating that the De Laceys' flight remains the emotional and moral turning point of his existence.