La Machine à différences (Pocket Book)

The mix of Victorian settings and advanced technology feels seamless but also complex. I'm curious what inspired this fusion and how much research went into the historical details.

The story's tension fluctuates, and I wondered if that was intentional to build suspense or just the nature of the complex plot. Would love to hear others' thoughts.

Every machine and social custom seemed so authentic, but I wonder if the author mapped out the entire world beforehand or let it develop organically while writing.