Les démons du Roi Soleil

The book uniquely merges science and magic—I'm curious what inspired this crossover and how it shaped the story's world-building.

There were some detailed explanations that made the story feel slow at times, but I wonder if it was meant to deepen the world or character development.

The specific point where history diverges is fascinating, and I’m curious whether it was a spontaneous idea or carefully planned from the start.