La cigarra del octavo día

The concept of an extra day with mysterious powers is so intriguing. I'm curious how the author came up with this idea and how it shaped the story's world.

The story was so exciting at the start and end, but I found myself wishing for a bit more momentum in the middle. Was that intentional to build suspense?

The magic felt both creative and consistent, but I wonder if there was a specific process behind designing these rules and how they influenced character choices.