Aveline de Grandpré, a charming and determined Assassin, operated in the complex world of colonial Louisiana.

Aveline was the illegitimate child of a French merchant and an African slave. Shortly after her father married Madeleine de L'Isle to further his business, her mother vanished mysteriously. Her unique upbringing let her grow into a social chameleon who could take on any guise from slave to lady.

At first, Aveline was an obedient disciple of her Mentor Agaté. When she discovered a Templar plot to send Louisiana slaves to Mexico to dig for ancient artifacts, she investigated against her Mentor's will and found her mother there. She also learned about a high-ranking Templar called “The Company Man”. She sought “him” for years, even enlisting the aid of the American Assassin Connor, only to learn that “he” was Madeleine.

When she tried to warn Agaté, he doubted Aveline's loyalties and his despair led him to suicide. Aveline then joined the Templars, a final ruse to destroy them from the inside. She assassinated her stepmother and kept a crucial artifact from Templar hands.