Let the games begin!

(Story 1) Sorry if this is a little rubbish. My first ever summary. When the team walk into H.Q. and discover the girl they met that morning, how will they react? Will her uncontrollable enthusiasm and curiosity get the team into bother? Will someone die trying to save her? Who is that girl, or should I say WHAT Is that girl? She is defiantly not human, right? Rated T to be safe.