She was perfectly content staying away from the shadows. Would have remained some distance away, too, if Finnick hadn't been grabbed by the crystallized corpse of the very girl they were searching for.

Anthem had a choice. Try and pry the hand off physically and get Finnick away from the girl, or magic her way out of this and potentially kill (double kill?) The girl.

Not really much of a choice.

A bolt of bright blue streaked past Finnick and seemed to lock into Alice's chest, the shock of magic surging through her tiny body like a lightning bolt. Anthem reached her other hand out to try and pull Finnick back while the crystal zombie girl convulsed.