Following the death of Philip IV, the newly crowned Louis X faces a precarious succession crisis fueled by the lingering shadow of the Templar curse. Louis X must navigate a treacherous court where his imprisoned wife, Marguerite, stands as the primary obstacle to his desire for a new marriage and a legitimate heir. Opposed by ambitious nobles, religious zealots, and the weight of his own indecision, the King finds his authority eroded by scandal and the machinations of those seeking to dismantle his dynasty. The narrative employs a third-person omniscient perspective, shifting between the claustrophobic confines of the prison and the sprawling, volatile landscape of the French royal court.

This work is widely regarded as a foundational text in the genre of historical political drama, often cited for its meticulous research and cynical view of power. Readers frequently note the author's ability to transform dense historical records into a fast-paced narrative that mirrors the intensity of modern political thrillers. The atmosphere of impending doom, driven by the central curse, provides a consistent tension that keeps the focus on the fragility of the monarchy. It is frequently praised for its lack of sentimentality, presenting a cold and calculated look at the individuals who shaped the destiny of France.