Ok... so, just to clarify, December is still about, but he's no longer possessing Rasputina directly, correct? He tried to use the event to reposes Rasputina and turn him/her into something nasty, right? When 'Tina gave December the straight arm, and bumped him off into the silent one, the "echos", per se, was what created Snow Storm.
Now, and end of book 1 question: Maybe I misread, but isn't December the one who gave Rasputina her powers? So, when the events at Kithera happened, did Tina's power go away, or did she somehow keep it?
I know I had another burning Rasputina question, but I can't remember... Meh, I'll just bug you with PM's if I remember