Salle des Etats

The Salle des Etats is the most famous single room in the Louvre Museum, located in the Denon Wing. It is a rectangular chamber that serves as the permanent home of Leonardo da Vinci's Mona Lisa, the most celebrated painting in the world. The room is a dead end off the middle of the Grand Gallery, with a single point of entry through large wooden doors. Inside, the Mona Lisa hangs on the northwest wall behind a two-inch-thick pane of protective Plexiglas, while a dominating fifteen-foot Botticelli faces the entrance on the far wall. An immense octagonal viewing divan sits in the center of the parquet floor, providing a respite for the thousands of visitors who come to admire the Louvre's most valuable asset.

The Scene of a Final Message

On the night of Jacques Saunière's murder, the Salle des Etats becomes the destination of Sophie Neveu's desperate search. Believing her grandfather's dying message—the anagram "O, Draconian devil! Oh, lame saint!" which decodes to "Leonardo da Vinci! The Mona Lisa!"—was a directive, Sophie returns to the room after the Grand Gallery has been cleared. She retrieves a black-light penlight from the forensic equipment near her grandfather's body and uses it to scan the floor and walls for any hidden message written in invisible ink. Her search proves successful when she and Robert Langdon, who has followed her, discover six words scrawled in luminescent ink directly across the protective glass of the Mona Lisa: "SO DARK THE CON OF MAN." This message, Langdon explains, is a proclamation of the Priory of Sion's fundamental philosophy regarding the Church's suppression of the sacred feminine.

The Discovery of the Key

Sophie's investigation does not end with the message on the Mona Lisa. Recalling that her grandfather always insisted on visiting a second Da Vinci painting, Madonna of the Rocks, which hangs directly opposite the Mona Lisa, she turns her attention to it. Using the black light, she finds no writing on the painting's surface. However, when she pulls the large canvas away from the wall, she discovers a small, shimmering gold key lodged near the bottom edge of the frame's wooden armature. The key is heavy, with a broad, sculpted head in the shape of an equal-armed cross, and bears an engraved seal she has not seen since she was nine years old: a fleur-de-lis with the initials P.S. This key, which Saunière had promised her as a child, is the true object of the night's treasure hunt, and it will lead them to the Depository Bank of Zurich and the Priory keystone.

Narrative Role and Significance

The Salle des Etats functions as a pivotal narrative space where the novel's central mystery deepens and a crucial physical clue is obtained. It is the site where Saunière's coded communication is fully realized, moving from a cryptic anagram to a direct, though still enigmatic, statement. More importantly, it is the location where Sophie retrieves the gold key, the tangible object that propels the plot forward from the Louvre to the bank and ultimately to the heart of the Grail quest. The room's association with Da Vinci's masterpieces, particularly the Mona Lisa and Madonna of the Rocks, reinforces the novel's central themes of hidden symbolism, the sacred feminine, and the enduring power of art to conceal and reveal secrets.