Marguerite

The woman screamed at me, wordless and guttural. What might have been a pretty face was screwed up into something bestial. I'd never seen such instant rage. It was frightening, even with a loaded gun in my hand.

(Circus of the Damned, page 43, paragraph 4)

* She has a battle with Anita, ostensibly to fight for the right of Yasmeen, however, Anita chokes her into unconsciousness.

* When Yasmeen is killed by Alejandro, Marguerite scratches her eyes out. It's not entirely clear if she is still alive at the end of the novel.