Explanation:
Elizabeth learned the truth about Wickham’s deception and treachery in Jane Austen’s novel Pride and Prejudice when she read the letter from Mr. Darcy explaining Wickham’s true character and past misdeeds. This occurs towards the middle of the novel, after Elizabeth has formed a negative opinion of Mr. Darcy based on his aloof behavior and apparent disdain for her family. The revelation about Wickham’s true nature and Mr. Darcy’s role in exposing him forces Elizabeth to reevaluate her prejudices and reassess her feelings towards both men.