David’s Invention and Its Capture
Illusions perduesDavid’s search for inexpensive paper promises independence, but commercial rivals turn his invention into leverage over him.
increasing
Bearing strength in each event
decreasing
A Scientific Promise

A Scientific Promise
The idea
David Séchard takes up the possibility of making cheaper paper from plant fibers, an idea linked to Monsieur Chardon’s scientific speculations.
Purpose
He imagines using the discovery to secure the future of Ève Séchard and Lucien de Rubempré.
Secret Experiments

Secret Experiments
Isolation
David Séchard works secretly in the printing house, testing plant substances and methods of preparing pulp.
Cost
His experiments compete with household needs and the demands of an underused business.
Cérizet’s Surveillance

Cérizet’s Surveillance
Betrayal
Cérizet grows close to the Cointet brothers and observes David Séchard’s concealed work.
Exposure
The inventor’s secrecy becomes a commercial vulnerability as the rivals seek to learn what he is making.
A Working Formula

A Working Formula
Breakthrough
David Séchard discovers a workable plant-fiber pulp and improves the method of bonding paper in the vat.
Opportunity
The results establish that his research could transform production, but he lacks the capital and protection to exploit it alone.
A Costly Settlement

A Costly Settlement
Bargain
After prolonged experiments and financial pressure, David Séchard accepts a deal that gives the Cointet brothers control over practical exploitation.
Aftermath
His work benefits French papermaking, while the inventors’ household chooses security and peace over a further legal struggle.
Before Lucien’s departure for Paris
Late 1821
During the first months of David and Ève’s marriage
After David’s secret confinement begins
1823