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A Cardinal Sin

Eugène Sue (1804–1857)

French Literature6 min read·1,394 words

The story of a young man discovering that his father’s hidden wealth is the key to both his own happiness and the salvation of the destitute, this narrative explores the redemptive power of charity over deep-seated greed.

In Short

This novel explores the transformative power of wealth and the dangers of extreme miserliness in 19th-century France. The plot follows the lives of two impoverished souls, Louis Richard and his beloved Mariette, whose struggles against poverty and social cruelty are upended by the sudden discovery of a hidden fortune left by a "miserly" father. By contrasting the cold, calculating nature of avarice with the warmth of selfless generosity, the story serves as a moral fable, illustrating how money can either corrupt the soul or become a powerful tool for social salvation.

The Story

The narrative centers on the quiet, grinding poverty of young Louis Richard and his sweetheart, Mariette Moreau. Louis, a man of gentle character, works as a clerk, while Mariette and her embittered, crippled godmother, Madame Lacombe, live in squalor. Their lives are shadowed by the machinations of a predatory usurer, who poses as a wealthy military officer to exploit the vulnerable. Amidst this suffering, Louis’s father, an old man who has lived in apparent penury while hiding a massive fortune, initiates a complex series of ruses to test his son’s character.

When the father is reported dead in a catastrophic train accident, Louis is left to inherit the secret, vast wealth. Upon discovering the truth—that his father lived in filth not out of necessity, but from a pathological, all-consuming avarice—Louis is initially crushed by the deception. However, he soon undergoes a profound moral awakening. Rather than squandering the money on luxury, he resolves to use the inheritance to lift his community out of their misery. He establishes charitable institutions for the poor, provides for Mariette’s godmother, and transforms their shared life into one of meaningful, quiet service.

The narrative arc expands to include Florestan de Saint-Herem, a wealthy aristocrat who mirrors Louis’s path in a different way. Florestan, having squandered his own fortune, finds himself redeemed by the sudden interest of a wealthy countess, who admires his character and entrusts him with her own vast riches. The story concludes on a note of synthesis: Louis’s father, revealed to have survived the accident, repents of his former greed and joins his son in the work of philanthropy. The final scenes depict a community transformed by these resources, where the former "miser" is reimagined as a saint-like figure, and the young couple finds happiness not in the acquisition of wealth, but in the stewardship of it for the public good.

How It Unfolds

The struggle of the poor The story opens in a dreary quarter of Paris, where the young, impoverished Mariette seeks help from a public scribe to write a letter to her beloved, Louis. Her daily existence is defined by the harshness of her godmother, Madame Lacombe, and the crushing weight of twenty-sou days spent sewing fine linens she cannot afford.

The arrival of the predator A flamboyant, manipulative character calling himself Commander de La Miraudiere appears, attempting to use his false military credentials and wealth to exploit Mariette’s vulnerable situation. His presence introduces a climate of menace, as he attempts to use the godmother’s desperation to gain access to the young woman.

The secret of the father Louis struggles to understand his father’s extreme frugality, believing it to be a product of unavoidable misfortune. The father’s elaborate ruses, including fake business trips and mysterious documents, keep Louis in the dark until the old man’s "death" triggers the revelation of his secret, hidden wealth.

The transition to redemption Once the true nature of his father’s fortune is uncovered, Louis rejects the path of luxury and instead adopts a life of modest work and charity. He and Mariette, now married, devote themselves to managing the inheritance to save others from the same cycle of poverty and crime they once inhabited.

The legacy of the saint The narrative concludes with a grand celebration of the charitable foundations created by the fortune. In a final ironic turn, the old father returns to witness his wealth being used for good, marking the end of his "cardinal sin" of avarice and the beginning of a legacy of community support.

The People

Louis Richard is the story’s moral anchor. Initially a humble, devoted son working a dead-end job, he possesses a gentleness that shields him from the cynicism of his environment. His journey is one of ethical growth; he moves from being a victim of his father's secrets to becoming the virtuous administrator of a great fortune.

Mariette Moreau represents innocence and endurance. Despite her grinding poverty, she maintains a pure heart and a steadfast love for Louis. Her transformation is less about wealth and more about the security of domestic stability; she blossoms from a tired, overworked girl into a dignified, compassionate woman and mother.

Madame Lacombe starts as a bitter, sardonic figure, hardened by a lifetime of physical pain and material deprivation. She is the embodiment of the toll poverty takes on the spirit. Her eventual transformation into a benevolent, well-dressed matron signifies the healing power of the wealth she once viewed with such hatred.

Florestan de Saint-Herem acts as a foil to the miserly father. An elegant aristocrat who admits to having "ruined" himself through dissipation, he is ultimately redeemed by the trust of a wealthy woman. He serves to remind the reader that true worth is measured by how one handles influence and resources, not just by one's bank account.

The Father (A. Richard) is the central driver of the plot. His character arc is the most dramatic, transitioning from a man who suffers from the "cardinal sin" of avarice to a man who finds peace in giving. His survival and subsequent conversion to a life of service provide the resolution to the book’s central moral inquiry.

In Its Own Voice

The text captures the agony of the illiterate poor, who are forced to rely on strangers to mediate their most intimate communications.

"To hold in our grasp, and beneath our eyes, the few lines that bring us joy or sorrow, and be unable to penetrate the secret; to be under the necessity of asking a stranger to read these lines, and to receive from indifferent lips the announcement of something on which life itself almost depends, is an agony beyond words!"

The godmother expresses the bitter, cynical worldview that the characters must overcome.

"Poor child! you are doing your purgatory on earth; and if there is no Heaven, you will be well cheated."

What It's Really About

At its core, this book examines the corrupting influence of hoarding—the "cardinal sin" of avarice—and asks whether a life of misery can be justified by the potential for future salvation. It posits that wealth is not merely a tool for individual comfort but a social responsibility. By contrasting the secrecy of the miser with the transparency of the philanthropist, the author argues that true nobility is found in the relief of others' suffering. The book also interrogates the nature of "justice" in an unequal society, suggesting that when the state fails the vulnerable, individuals must step in to fill the void, turning their private hoards into public blessings.

Why Read It Today

Readers who enjoy 19th-century French social literature will find this book deeply compelling. It captures the atmosphere of a changing Paris, where the divide between the desperate poor and the ostentatiously wealthy creates constant, palpable tension. The writing is characterized by an earnest, almost Dickensian concern for the downtrodden, and the prose maintains a steady, rhythmic pace that pulls the reader through the various moral tests the characters face.

It is important to note that the book reflects the period's specific, sometimes archaic, attitudes toward class and social hierarchy. The dialogue can occasionally feel stilted or overly theatrical, a common feature of translated 19th-century serial fiction. Furthermore, the plot relies on heavy-handed tropes—such as secret documents and long-lost relatives—which may challenge readers accustomed to more contemporary, understated narratives. However, for those who value stories about the transformative power of empathy and the struggle to remain "good" in a world that rewards greed, it offers a deeply satisfying resolution. The book’s central thesis—that we are responsible for the welfare of those around us—remains as urgent and relevant today as it was in the late 1800s. It is a warm, moralistic read that lingers on the idea that even the most hardened heart can find redemption through the simple, radical act of sharing.

This summary was written by AI (gemini-3.1-flash-lite) on 2026-09-16 and is a guide to the book, not a replacement for it — it can be incomplete or wrong. The book itself is public domain. Copyright & AI disclosure · Report a problem

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