There was a blue-white flash: a pillar of electron light that penetrated even her closed eyecups, and ripped through the encroaching silver-gray shadow of the ray.
She cried out. It was the first sound she had made since waking into this nightmare, she realized dully.
She opened her eyes. The ray had pulled away from her and was twisting in the air. The ray was being attacked, she saw, disbelieving: a bolt of electron light swept down through the Air and slanted into the ray's misty structure, leaving the broad fins in crudely torn shreds. The ray emitted a high, thin keening; it tried to twist its head around to tear into this light-demon—
-Vacuum Diagrams, "Hero"