Black Siren wanted to kill Zoom for what he did to Killer Frost. He took away the only other people who ever gave a d*** about. The only other people who got through to her that she… loved. To make the cold and distant Killer Frost love was almost impossible, and yet her soulmate and best friend had reached beyond the thick wall of ice she had built up around her.

But…

How would she go about taking him down when there were others, like Reverb, who's beloved soulmates were under lock and key somewhere? It was unlikely that all of them were at the base.

Reverb. Thinking about him was a jolt to her memory. Zoom had his soulmate too.

Even if he was gone now, she couldn't jeopardize his soulmate. She just couldn't. He was her friend after all, one of the only ones she had.

She knew then that she would have to watch and wait for opportunity to present itself, one that would save the soulmate of Reverb and get rid of Zoom.