Outside In (en Inglés) - Maria V. Snyder

Me? 

A Leader?

Okay, I did prove that there's more to Inside than we knew. And finding that led to a major rebellion between worker scrubs like me and the privileged uppers who rule our world. Make that ruled. Because of me, we're free. I thought that meant I was off the hook, and could go off on my own again-while still touching base with Riley, of course. He's the one upper I think I can trust. But then we learned that there's outside and then there is Outside.

And something from Outside wants in.