This is a weird one because my first thought was that it doesn't really 'challenge' myths so much as it completely flips the script on who the gods are. Like, in this version, the Olympians aren't timeless celestial beings; they're more like a dying corporate bureaucracy, clinging to power because the belief that fuels them is running out. Zeus is a paranoid CEO, and the real challenge comes from the human characters realizing they don't need permission to be powerful. It's less about debunking the old stories and more about asking what happens to divine authority when people stop blindly worshipping.
I saw some reviews calling it a straight deconstruction, but that feels too clean. The book isn't just taking myths apart. It's using their skeleton to build something new—a story where 'belief' is a tangible, almost radioactive resource that humans can now wield. That's the real challenge to tradition: it suggests the old gods were never inherently superior, just earlier adopters of a technology we're now learning to use ourselves. The ending with the protagonist literally rewriting a local river's myth on the fly gave me chills; it felt less like rebellion and more like a natural passing of the torch.