" She was chosen,' Mae insists.
No, you're wrong,' I say. 'She was only a girl.'...
She was gone for some time. You were the only force that kept her from turning completely. That's magic. Perhaps the most powerful I've seen.'
-In response to Felicity's love for Pippa keeping her from turning into a Winterland creature. "

― Libba Bray , The Sweet Far Thing (Gemma Doyle, #3)