Marie-Josèphe and Yves as Siblings
The Moon and the SunThis thread follows the siblings’ reunion, renewed dependence, conflict over autonomy, and hard-won recognition of each other’s separate judgment.
increasing
Bearing strength in each event
decreasing
A Joyful Reunion

Family Restored
Recognition
After a long separation, Yves embraces Marie-Josèphe and delights in seeing her grown. Their affection briefly returns them to the intimacy of childhood.
Changed circumstances
They have spent years apart, and Yves has become a Jesuit and royal natural philosopher. Reunion cannot erase the experiences that shaped them differently.
Old Roles Reasserted

Brother and Assistant
Familiar authority
Yves expects Marie-Josèphe to help with his work as she did in Martinique. She is glad to be useful but also wants room for her own ambitions.
A mismatch
His automatic directions and her court responsibilities create friction. Affection remains, but their old roles no longer fit cleanly.
The Convent Wound

A Painful Memory
The proposal
Yves thinks a convent would keep his sister safe. Marie-Josèphe reveals that convent life meant silence, punishment, and years without intellectual freedom.
A fractured assumption
Yves intended protection, but did not understand what he had sent her into. Their love is strained by the difference between good intentions and lived experience.
The Lie and the Confession

Trust Broken
Concealment
Yves hides the truth about Sherzad’s ring and later lies about the organ of immortality. Marie-Josèphe sees his pursuit of favor compromising his integrity.
Confession
She confronts him with what Sherzad told her. Yves admits the theft and returns the ring, beginning to repair their trust through action.
A Shared Departure

Siblinghood Reconsidered
Different penances
Yves is ordered to serve the Church’s historical correction, while Marie-Josèphe is forbidden to compose. Both recognize the limits of the punishment as Louis XIV intends it.
Renewed alliance
Yves carries her belongings and prepares to leave with her and Lucien. Their affection now allows disagreement without reducing Marie-Josèphe to a dependent child.
The arrival at Le Havre
The first night of laboratory work at Versailles
After Yves suggests sending Marie-Josèphe back to Saint-Cyr
After Yves falsely claims the organ’s power
The final judgment and departure from court