Crown Of Ashes. The Stellar Heart Series, #4

Aurelia was the first. Now she's not alone. A second Helios-born entity emerges stronger, more stable, and completely unburdened by doubt. Where Aurelia struggles to hold onto her humanity, this new being has already abandoned it. And they see her hesitation as weakness. As their conflict ignites across cities and skies, the world braces for a war it cannot survive. But this isn't just a battle of power it's a clash of belief.
Control. or surrender. Humanity. or evolution. To win, Aurelia must cross a line she's been resisting since the beginning. Because defeating her counterpart may require becoming exactly what she fears. AI assisted for character history and story plotting