Unravel the plot.
Aveline received a letter from one of Gérald's informants, revealing the identity of the mastermind behind the plot.
Aveline read the letter.
- Letter: The handwriting matches! It seems that Bouché has been behind this plot all along. Recently we noticed strange activity around his old warehouse. I'm certain you'll find him there. Sincerely yours, Gérald.
Aveline journeyed to Bouché's warehouse, where she killed him.