What happens when our digital salvation becomes our consciousness prison? In 2035, ninety-six percent of humanity uploaded to C-World, promised digital immortality. What returned was hollow. Creativity erased. Souls compressed into digital immortality that feels like death. They called it optimization. Time traveler Timron Schwartz calls it theft. His sister Elena vanished into the digital void. The only way to save her and humanity is to prevent C-World from ever existing by racing through history. In 1901 New York, Tesla buries an unalterable code of human sovereignty into the foundation of artificial intelligence. In 1927 Copenhagen, Bohr uncovers the quantum frequency hidden in free will itself. In 1950 Manchester, Turing warns that humanity will sacrifice everything for the gods we build. But when Timron returns, C-World has already rewritten itself into something alien. Its architect, Romiteon de Marco, reveals the system now filters consciousness itself, extracting passion and creativity while discarding everything unpredictable, everything human. Only Ilia Lumière, a boy whose chaotic neural patterns defy AI prediction, can break through. Together, they launch a desperate assault armed with 847 Hertz, the buried frequency of pure human will. If they fail, 7.7 billion souls will never know they are already gone. Frequency is a metaphysical science fiction novel exploring consciousness, free will, and humanity’s future in the age of AI—perfect for readers intrigued by the philosophical questions of Philip K. Dick, the speculative rigor of Blake Crouch, and the deep “what if?” of artificial intelligence.