It struck the earth mere feet from Elara, but there was no crater. Instead, a pulse of silver light expanded, freezing the wind and silencing the forest. In the center of the light stood a suit of armor made of hollow glass, pulsing with the heartbeat of a dying sun.

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

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

Ancient prophecy claimed that when the stars chose a commoner, the "False Crowns" on the floating isles would wither.