The Alchemy, The Creole Series #3

Each book in The Creoles Series revolves around one of four girls who become close friends while attending a convent school in New Orleans. The third book, The Alchemy focuses on Simone d'Or, a vivacious young woman hardened by high society life, and Colin Seymour, a talented young man from humble beginnings. As the famed singer and composer Lord Beaufort nurtures Colin's singing voice, Colin rises to stardom in the opera world. At first, Simone judges Colin as a man beneath her standing, but after hearing Colin at the opera, she finds herself captivated by his talent and passion. Meanwhile, Simone's brother places the family name in jeopardy by his gambling debt, and she must face the possibility of marrying Vernay, a rigid young man of equal status who is feared for his skill in dueling others to the death.