Billie: Friend or Foe?

When we first meet Billie Jenkins, we learn that she's a novice witch with determined ability to seek and destroy as many demons and evil entities as possible. She has a fierce attitude, Prue like powers (telekinesis and projection) and a bit of an edge. It's her mission of taking down demons that sends her nose-diving into the sisters' lives. You see during demon battle Billie's innerself secretly calls out to her guardian, Paige Matthews. With the sisters in hiding, Paige tries to ignore the call, but fails miserably when Billie blasts through Halliwell Manor after some demons. The sisters' think their problems have been answered when Billie becomes their new liason to demon duty, but soon learn that life in hiding isn't what they want for innocents and for themselves. So they take the young witch in and give her the much needed training. Billie takes in as much of their knowledge as she can; she is great at offering new theories and demon strategies. But this little witch has an agenda of her own. She is bent on the mission of finding her sister, Christy Jenkins, who was taken years ago by a demon. And that's her only true train of thought.


Now for my Billie theory. What if Billie Jenkins is a warlock in disguise? Haven't we seen demon kids before? So this idea of Billie, a young adult/child, being evil is a possibility. I mean she has woven herself into the sisters' lives, trained with the Book of Shadows and busted demons with Power of Three potions. If you read spoilers, you know that once Christy has been found she's not...well good. Maybe that's the plan...maybe Billie and Christy are in league to take down The Charmed Ones. Billie has the power of projection, yeah we've seen her just starting to have it, but what if she's had it all along. She could have tricked the Elders into making herself Paige's charge. Billie could have even planted the idea that Christy has been taken by demons. Did she not just use her power of projection to change Piper, Phoebe and Paige's minds when under the zen staff's spell? So maybe Billie and Christy are the new looming threat; one that The Charmed Ones won't see coming. I'm guessing that Christy and Billie being evil and in league with each other to take down the sisters would be a surpise and battle that The Charmed Ones would never have seen coming, especially since they have been tending to, guarding and training Billie after themselves. I reckon the only way to find out if my theory is true is to continue with the episodes and the rest of the season.