After pressing Bouchard further, he admits Werner had contacted him asking for weapons and details of an archeological dig going on beneath the Louvre. Bouchard sits alone in his office, and when Lara approaches him demanding he tell her what he wanted with Von Croy, he initially plays innocent, claiming Werner had asked for maps of the Louvre to take "a busload of Japanese tourists to see Leonardo da Vinci's Mona Lisa", but Lara is unconvinced. While making her way through the tunnels, Lara finds a deformed, crazed man named Arnaud strapped down to a bed in a locked cell. Pierre/Bernard gives Lara the details on access to Bouchard's hideout, located in crypt beneath St Aicard's Church. Lara notices a mysterious stranger known as Kurtis sitting in the corner, who later takes off on his motorcycle. Lara speaks either to Pierre or Bernard and is given access to Bouchard's hideout if she returns a box to either of them.
Janice also reveals Carvier may have been murdered by the Monstrum after Lara left her. She also reveals information of Bouchard's two main workers. One is a city guide a who offers Lara information of the death of people by the Monstrum and a prostitute called Janice who tell her that Bouchard formerly ran a club known as Le Serpent Rouge and has lost staff. Everybody on the streets appears to know Bouchard. The research apparently involves a man known as Bouchard, and Lara resolves to find and question him on Von Croy's final days. Von Croy's journal contains details of his last project research on a work of art known as the "Obscura painting", apparently located in a medieval chamber beneath the Louvre.
Lara is again forced to make a quick exit, and ends up spending the rest of the night in an abandoned train carriage in a Parisian slum. A shocked Carvier suspects Lara may be responsible, and telephones the police, but not before carrying out Werner's last wish that Lara should have his field journal. Eventually, Lara makes it to Carvier's apartment, and informs her of Werner's death. Unsure of what has happened, and of her own guilt or innocence, Lara flees the apartment, and is pursued down the backstreets of Paris by French police. When she awakes, Werner is dead, and his blood is smeared both on her hands and the walls of the apartment, forming strange symbols.
In the next few moments, a blur of activity occurs, and Lara is knocked unconscious. Werner begs for her help, complaining that he is being stalked, and asks that she talk to Mademoiselle Carvier, a friend of his and art historian at the Louvre, but Lara admonishes him and gets up to leave. The visit, however, is not pleasant Lara blames Werner for abandoning her in Egypt at the conclusion of Tomb Raider: The Last Revelation. Lara has arrived in Paris to visit her former mentor, Werner von Croy.
The story begins in Paris where a serial killer the press have named "The Monstrum" has been terrorizing the city, killing several seemingly unconnected individuals in a brutal, ritualistic fashion. Main article: Tomb Raider: The Angel of Darkness Story Plot