In What Will He Do with It? Volume 9, Edward Bulwer-Lytton delves into themes of love, betrayal, and the weight of societal expectations. The novel centers on the emotional turmoil of Darrell, whose past is irrevocably shaped by a complicated relationship with Caroline Lyndsay, now the Marchioness of Montfort. Their reunion brings to the forefront unresolved feelings of betrayal and loss, as Darrell struggles with the impact of Caroline's past choices, particularly her emotionally unfulfilling marriage. The complex dynamics between them highlight the deep-seated resentments and lingering affections that continue to haunt their lives.
As the story unfolds, other characters, such as Lionel Haughton and Sophy, become involved in the main narrative, further emphasizing the theme of love's challenges and the effects of social standing on personal happiness. The novel explores the lasting consequences of decisions, both big and small, and the inescapable nature of the past in shaping the present. Through these intertwined relationships, the novel invites readers to reflect on the complexities of human connection, the search for fulfillment, and the enduring question of how to reconcile one's actions with the desire for happiness amidst regret and unfulfilled longing.