The Stellar Resonance. The Core Mythlogy Series, #3

The silence was never the end. It was the signal for the harvest. The Global Frequency has been silenced, but the world is far from safe. Alexandra and the survivors of the Aegis thought they had won when Cole grounded the signal, but they were only half right. The static didn't vanish-it evolved. As the bruised indigo skies of Earth settle into an eerie calm, a new vibration begins to rise. It is melodic, rhythmic, and undeniably alien.
It isn't coming from the Institute or any human broadcast; it is coming from the deep reaches of the vacuum of space. The obsidian satellite has unfolded like a blooming flower, turning its lens toward the stars and acting as a beacon for something that has been waiting for forty years to return. Alexandra now carries a terrifying secret beneath her skin. The silver tint of the Apex has been replaced by a golden translucence-a physical marking that she is no longer entirely human.
She is the first of the "harvested, " a bridge between Earth's dying frequencies and a vast, celestial intelligence. As the melodic chime of the Stellar Frequency begins to resonate through every electronic device on the planet, the true nature of the Sickness is revealed. It wasn't a plague; it was a preparation. With Elias's haunting warning echoing in her mind-"We're the harvest, and the reapers just arrived"-Alexandra must lead a desperate resistance against an enemy that operates on a cosmic scale.
To save what remains of humanity, she must learn to master the new frequency before it rewrites the very fabric of their reality. The broadcast has changed. The galaxy is listening. And the harvest has begun.