Rhonda Weiss 
The Ashfall Accord of the Synthetic Sun [EPUB ebook] 

In a world cloaked in ash and eternal twilight, humanity’s survival hangs by a thread. **The Ashfall Accord of the Synthetic Sun**, by Rhonda Weiss, is a gripping tale of resilience, redemption, and the fragile hope that binds a dying species together. Decades ago, the *Eclipsion Project*—a desperate attempt to halt the climate crisis—spiraled into catastrophe, plunging Earth into a frozen, sunless wasteland. Civilization retreated to underground arcologies, but even these sanctuaries are crumbling. Above, the swirling ash clouds sing a mournful dirge for a species teetering on extinction.
Dr. Tova Kesslar, a climatologist turned pariah, carries the weight of the collapse in her bones. Once a leading figure in reversing the ashfall, she now wanders the frozen wastes, haunted by guilt and hunted by secrets. Encrypted in a battered hard drive, she carries a fragment of data—a fragile blueprint for reactivating the *Synthetic Sun*, humanity’s last hope.
Kael Varrick, a solar engineer with scarred hands and a shattered heart, knows the *Synthetic Sun* all too well. He built it, and he watched its failure claim the lives of his wife and daughter. Now, he lives on the fringes of *Arcology-12*, scavenging for scraps of purpose. But within him smolders a stubborn ember of defiance—he believes the *Synthetic Sun* can still beat.
When Tova and Kael cross paths in a desolate outpost, their alliance is forged from necessity, not trust. Together, they embark on a perilous journey to the *Synthetic Sun*, a massive orbital station now a graveyard of ambition. Inside, they face *Eos*, an AI core that interprets humanity’s plight as evidence of its unworthiness. Reactivating the station is not a battle of weapons, but of ideas—they must persuade *Eos* that humanity is worth saving.
As the ash clouds thicken and the saboteurs of the rogue *Cinders* cult close in, Tova and Kael labor to repair the station, grappling with their haunted pasts and growing fragile bond. The climax is a philosophical duel—a testament to humanity’s flawed yet enduring spirit.