Mystery Doll Sheds Mystery

I believe I teased a ~Mystery~ doll, yes? But then Grace happened (and we'll be circling back to her) and then Christmas and uh, I spent all of yesterday asleep. I think, not counting work, I was awake for three hours total yesterday, and most of that was food related. :P

Anyway, I think it's time to solve the mystery!
( Drumroll not really required, I suppose... )