Inside the Star-Forge, Elara faced a choice. She could return the light to the sky and save herself, or she could become the "One True Queen" and tether the floating islands to the earth, ending the divide forever.
As they fled toward the Star-Forge—the only place where Elara could stabilize the volatile magic killing her from the inside—she realized the stars hadn't chosen her because she was "worthy." They chose her because she was the only one angry enough to burn the old world down. The Climax: The Star-Gilding
As Queen Althea’s forces breached the forge, Elara didn't reach for a sword. She reached for the gravity in her blood. She didn't just take the throne; she brought the heavens down to meet the dust. If you'd like to develop this further, let me know:
When Elara touched the glass, it didn’t shatter. It melted into her skin, weaving through her veins like liquid mercury. The Burden of the Light
The current Queen, Althea, felt her magic fading the moment Elara was chosen. She sent the Sky-Knights to "harvest" the girl before the transition could finish. The Journey to the Citadel