She was there, lifeless and inanimate, thrown across the bed, her head hanging down, and her pale and distorted features half covered by her hair.
In Chapter 23, on his wedding night, Victor has the horrible realization that the monster intended to kill Elizabeth all along. After leaving Elizabeth in the bedroom alone to search the grounds for his creation, Victor suddenly hears her scream, and bursts into the room to find her lifeless body on the bed. Having allowed Victor to experience the joy of marriage only to take it away and leave him heartbroken and isolated, the monster has at last achieved the revenge he craved.
The murderous mark of the fiend’s grasp was on her neck, and the breath had ceased to issue from her lips.
In Chapter 23, Victor describes the lifeless body of the murdered Elizabeth. The explanation of this quote in Quotes by Character: Elizabeth Lavenza discusses the irony of a character who we have barely ever heard speak being strangled to death.
As the memory of past misfortunes pressed upon me, I began to reflect upon their cause—the monster whom I had created, the miserable daemon whom I had sent abroad into the world.
As the explanation for this Chapter 23 quote in Quotes by Character: Victor Frankenstein discusses, the question of who is to blame for the string of murders in the novel—Victor, his creation, or both—is one that is best left for the novel’s individual readers to ponder.