Casaubon escapes through the Conservatoire sewers

Casaubon escapes through the Conservatoire sewers after the violence surrounding Belbo’s death. The escape carries him out of the building and back into the streets of Paris, but it does not restore him to emotional or mental safety: he leaves with an unresolved image of Belbo, remembers Lorenza only after reaching the surface, and continues to read the city through the paranoid logic of the Plan.

The Escape Route

When Casaubon has nothing more to learn inside the Conservatoire, he takes advantage of the confusion to reach the statue of Gramme. Its pedestal remains open. He climbs down a narrow ladder, passes a small landing lit by a bulb, and descends a spiral stone staircase into a dim passage. The route is not an intended public exit but a hidden way beneath the building, reached by using the statue as an entrance.

The passage proves to be a sewer. Casaubon follows its largest conduit rather than taking the darker side branches, hoping to find a sign that will tell him where to leave the underground route. He understands that he is escaping and that the Paris sewers are taking him farther from the Conservatoire. Against the place he has fled, even this subterranean passage becomes a form of relief and freedom.

Eventually Casaubon sees a brighter lamp and another ladder, this one leading to a wooden trapdoor. He climbs through into a basement filled with empty bottles, then passes a corridor marked by separate doors for men and women. Those ordinary signs tell him that he has reached the world of the living. The route from the Conservatoire has brought him not directly into the open street but through a sequence of thresholds, from the hidden passage to a cellar and then toward public life.

From the Dead to the Living

The escape does not immediately free Casaubon from the scene he has left behind. He carries the image of the hieroglyph traced in the choir by Belbo’s corpse and cannot yet work out what it means. Only later, at Belbo’s country house, does he find a letter explaining the behavior of a pendulum with a second weight attached to its wire. That later discovery changes his understanding: Belbo had been imagining the Pendulum in relation to both Sinai and Calvary, and his death was not simply the result of a recently invented Plan. In Casaubon’s retrospective account, Belbo’s imagination had anticipated the form of his death before the events that would make it real.

At the cellar’s exit, Casaubon stops, breathless, and only then remembers Lorenza. He begins to cry, while the memory of her seems to recede from him. The contrast is stark: he has reached the living world, but the people associated with the Conservatoire remain bound to death and loss in his mind. His physical escape is therefore not a clean transition from danger to safety. It gives him distance from the place, while leaving grief and the unresolved meaning of Belbo’s final sign behind.

Paris After the Conservatoire

Casaubon emerges into a bar and passes through it without attracting notice. The mundane setting contrasts with the hidden route by which he arrived: he appears to be an ordinary customer returning from the toilets. The escape thus carries him into public space without making his experience visible to those around him.

Outside, near Porte Saint-Martin, Casaubon finds a crowd gathered as marchers arrive for a demonstration against the Savary law. A stranger invites him into a club, but Casaubon refuses, interpreting the encounter through his suspicion of hidden affiliations and recalling Alamut as a warning. His flight has taken him out of the Conservatoire, but not out of the habits of thought that have made every meeting seem potentially part of a secret design.

He crosses the intersection and finds solitude again only a few steps from the crowd. The Conservatoire appears pale and peaceful from outside, as if nothing has happened within it. Casaubon continues south toward the Seine, with a destination but no clear account of what has happened or what to do next. The gap between the building’s calm exterior and the violence he has escaped preserves the episode’s central uncertainty: Paris looks ordinary, yet Casaubon cannot experience it as ordinary.

The Escape and Casaubon’s Paranoia

The later portion of Casaubon’s walk extends the flight beyond the sewer system. He notices streets, churches, an esoteric bookshop, and the Tour Saint-Jacques, and begins to treat their arrangement as evidence of special locations and hidden plotting. At Beaubourg, its pipes and machines become part of the same imagined network. He believes he must expose the Dark Ones’ plot at the center of the city, although the escape itself has supplied no proof of such a plan.

This movement from a concrete escape route to increasingly suspicious interpretation gives the action its larger significance. Casaubon successfully leaves the Conservatoire by following a conduit, choosing a route, and climbing through a trapdoor; afterward, he continues to search the city for signs that will explain what he has survived. The practical act of getting away ends, but his pursuit of meaning does not. The sewers provide a passage back to the living, while the Plan remains the framework through which he tries to understand the streets beyond them.