In 1803 New Orleans, the white Honoré Grandissime, head of the French Creole family, befriends newcomer Joseph Frowenfeld, whose family has died of
yellow fever. Grandissime describes to Frowenfeld the New Orleans
caste system, which has three racial groups. Frowenfeld's desire to end
slavery would destroy the labor base of the plantations, revenues from which support city life. Frowenfeld and Grandissime's uncle Agricola Fusilier, soon get into a dispute. Fusilier seeks to preserve the Grandissime way of life, which means continuing slavery. Frowenfeld decides to stay in New Orleans. Educated in science, he opens an apothecary shop. He befriends Aurora and Clotilde Nancanou. Frowenfeld and Clotilde quickly develop romantic feelings, but do not act on them. In the street one dark night, Palmyre stabs Fusilier superficially. He recovers, but takes no action against her, because he fears she might use her voodoo on him. Palmyre hates Fusilier because (in a plot line told in flashback) Fusilier had advocated for severe punishment for Palmyre's husband Bras-Coupe, leading to Bras-Coupe's mutilation and death. The quadroon Honoré Grandissime is in love with Palmyre. He asks Frowenfeld for a love potion to use on her. Frowenfeld (a man of science, not voodoo) declines. The quadroon begins to waste away with unrequited love. Influenced by Frowenfeld's modern ideals, the white Honoré Grandissime makes two decisions that alienate him from his family: 1) He agrees to go into business with his
quadroon half brother, also named Honoré Grandissime. 2) He returns Grandissime property to Aurora Nancanou that had been won in a bet years earlier. Grandissime is secretly in love with Aurora. Grandissime had previously tried to help Bras-Coupé, a slave married to Palmyre. After Bras-Coupé attacks his white overseer, a mob of Creole aristocrats, including Fusilier, captures the slave. Grandissime tries to intervene, but Bras-Coupé is mutilated, in accordance with the existing slave laws—an act demonstrating the darkness at the heart of their society. White Creole sentiment turns against Frowenfeld for three reasons: 1) He is an outsider with unpopular abolitionist ideas, 2) He is considered, by the many who don't understand science, to be a sorcerer, and 3) He is an American, and with the recent acquisition of Louisiana by the United States, the Creoles stand to lose their land grants that had been awarded by the previous French and Spanish governments. The result is that a mob destroys Frowenfeld's apothecary. He reopens in a new building, but under the name and protection of a silent partner in the Grandissime family. By chance, Fusilier and the quadroon Grandissime meet in Frowenfeld's shop. A quadroon is required to take off his hat to a white man, but Grandissime refuses, so Fusilier strikes him with his cane. In the ensuing scuffle, Grandissime stabs Fusilier, and Fusilier is seriously wounded. As Fusilier tries to recover over the following days, Palmyre tries to thwart the recovery by sneaking (via an accomplice) voodoo tokens into Fusilier's bedroom. The accomplice is caught and killed, but Palmyre evades capture. Fusilier dies. The quadroon Grandissime secretly arranges for Palmyre's safe passage to Europe, but she still declines to marry him. Despairing of losing Palmyre forever, Grandissime commits suicide. Frowenfeld and Clotilde finally confess their feelings to each other. The white Grandissime confesses his love to Aurora. The narrative is a bit ambiguous, but it seems likely both couples will marry. ==Adaptations==