Behind a Mask: or, a Woman’s Power is a sensation novella by American author Louisa May Alcott. It was originally published in 1866 in the magazine The Flag of Our Union under the pseudonym A. M. Barnard. The story is set in Victorian England and follows Jean Muir, a governess who presents herself as a meek, 19-year-old orphan to the wealthy Coventry family. Jean, who’s actually a 30-year-old divorced and disreputable actress, uses her cunning and theatrical skill to manipulate the family members, intending to secure a fortune and a title. The novella explores The Performance of Feminine Identity, Governesses and Class Contradiction, and Corruption in a Patriarchal Household.

While Alcott is best known for her celebrated novel Little Women (1868), she maintained a parallel incognito literary career writing sensational gothic thrillers for adult audiences. These popular and lucrative stories allowed her to explore darker themes of ambition, deception, and revenge that were absent from her wholesome domestic fiction. Behind a Mask is her best-known work in the genre. Its focus on a manipulative governess was common in sensation fiction of the 1860s, which often used the governess’s unique position as an educated but powerless household insider to disrupt domestic tranquility and critique class and gender norms. 

This guide refers to the 2026 print-on-demand edition.

Content Warning: The source material and guide feature depictions of death, graphic violence, emotional abuse, suicidal ideation, gender discrimination, and substance use.

Plot Summary

The wealthy Coventry family awaits the arrival of their new governess, Jean Muir, with mixed feelings: Mrs. Coventry, a nervous, frail woman, dreads the disruption; Gerald Coventry, the languid elder son and “master” of the house, openly despises governesses; and his younger brother, Edward “Ned” Coventry, urges kindness. Jean has been hired through the family’s neighbor, Lady Sydney.

Jean enters as a pale figure in black, claiming to be a 19-year-old Scottish orphan. She demonstrates fluent musical skill and then faints, murmuring for her mother. Gerald whispers to his cousin Lucia Beaufort, who adores Gerald and is assumed to be his future wife, that it was a well-acted scene. Jean overhears and fiercely warns, “The last scene shall be still better” (7). Gerald feels an unfamiliar jolt of excitement; Lucia is jealous. Jean claims that she left Lady Sydney’s household to avoid the romantic attentions of Lady Sydney’s son, Sydney.

Once alone, Jean removes false braids, wipes off cosmetics, and takes out false teeth, revealing herself to be a “haggard” and “bitter” woman of at least 30. She drinks alcohol from a flask, examines a scar on her breast, and speaks of herself as an actress whose curtain is temporarily down.

Over the following days, Jean charms each member of the household with calculated precision: She entertains her pupil, Isabella “Bella” Coventry, an impressionable 16-year-old; performs maidenly timidity before Sir John Coventry, Gerald’s wealthy uncle; tames Edward’s wild horse; flatters Lucia by comparing her to a portrait of her mother; and wins over Mrs. Coventry by expertly managing the tea service. She studiously avoids Gerald, which piques his curiosity. Still, Lucia and Gerald harbor instinctive distrust. When Gerald discovers that Edward is falling in love with Jean, he finally goes to London to secure Edward’s military commission—something he’s been promising to do for years.

When Gerald returns, Jean shows him a passionate love letter from Edward. Pretending to seek Gerald’s advice for avoiding what would clearly be an unsuitable match above her station, Jean blames Gerald for being too lazy to give Edward a proper career. Gerald is stung but admires her frankness. 

Edward arrives and demands that Jean marry him. She steps closer to Gerald and declares that she loves someone else. Enraged, Edward seizes a pruning knife and slashes at his brother. Gerald suffers a deep wound. Jean wrests the knife away and improvises a tourniquet that saves Gerald’s life. That night, the brothers reconcile; Gerald reassures Edward that the rival is Sydney. 

During Gerald’s convalescence, Jean avoids him, which only increases his desire to see her. Gerald learns from Sir John that Jean is the daughter of Lady Grace Howard, a noblewoman who eloped with a poor Scottish clergyman and was disowned by her family. This supposed noble birth greatly increases Gerald’s respect, as he now sees Jean as his social equal. 

Sir John hosts a theatrical evening at the Hall. Jean performs several dramatic tableaux, including one with Gerald in which they pose as lovers. Gerald feels under her spell. Jean later claims that Sydney drove her to attempt death by suicide and now threatens her reputation. 

Inspired by Jean’s challenge about his laziness, Gerald begins managing the estate with sudden vigor. He confesses his love. However, Jean receives a letter from Edward, who has learned the truth about her from Sydney. Edward gives her three days to leave. Jean vows to succeed before that deadline.

That evening, in a carefully staged scene, she presses a miniature portrait of Sir John to her lips and weeps over it. Sir John, deeply moved, declares his love and proposes marriage. Jean accepts with genuine tears of relief. Sir John plans to travel to London the next day for a special license, allowing marriage that same evening. Jean urgently asks him to tell no one.

An agonizing day follows. News arrives of a terrible train accident. Sir John is safe, but Edward is believed dead, to Jean’s relief. However, she then comes face-to-face with Edward in the garden, alive and unharmed. Edward gives Jean until the evening, warning that he will tell the family everything after dinner.

At six o’clock, Jean waits at the train station. Sir John steps off the London train with Reverend Fairfax. They proceed to the Hall, where they say their vows. When Fairfax addresses Jean as “my lady,” she laughs.

Meanwhile, Edward reads aloud to the family letters that Jean wrote to her fellow con artist, Hortense. The letters expose Jean’s deception: She is a divorced former actress who manipulated each family member according to a calculated plan. She fabricated her noble identity, and she intercepted and forged a letter from Sydney. Sydney’s persecution was also invented: Jean wanted to marry him, and when he refused, she wounded herself to guilt him.

Just then, Sir John and Jean enter. Sir John refuses to hear any accusations. Jean snatches the letters, throws them into the fire, and announces with defiant triumph that she’s now Lady Coventry. She sarcastically congratulates Lucia on winning Gerald back, thanks Edward and Bella for their kindness, acknowledges that she’s unworthy of Sir John, and promises to devote her life to his happiness. The family receives this in silence. Jean then fixes Gerald with the same penetrating look she gave him on her first evening and quips, “Is not the last scene better than the first?” (139).