Temporary brief:

Identity: SECRET.

Origin: Alien to Earth (I think.  I could be wrong.  I live across the country from where this all gets played out, so forgive me if I'm wrong on a couple things!)

Affiliation: Team Liberty, sanction status unknown

Description and Powers:  Subject of much scientific study and suspected source for much of the adaptagenic serum technology which created Team Liberty.  Her approximate earth-human maturity level, physically and emotionally, is 16.

(Toiseach: as with Cobblestone, help!)