Vampire's Slave
—Dalton calls our attention —And not only for your girl, they will come for Madi too.
—What? —Serena said, "Why?
—A Phoenix is not common in this era, they were thought to be just myths, until now.
—Dalton is right, for some reason, Rodrigo saw Madi after what he did. The people they work with will ask for Madi in exchange for completing Rosalie's transition into your body.
I understood that what they had done to her is that they made a strong blood transfusion for alma to return to her identical copy and it's only a matter of time before they return and a vampire bites her to complete the spell and what better payment than the power of a Phoenix.