So a few months back, I do recall there being a bit of a fuss over the whole Night Monster thing. Suggestions that there's more than one of them, so on and so forth.
Well, I just happened to see the newest announce text for if Wilson is about to be attacked by the Night Monster.
"That presence... it's familiar! Hello?"
Would appear that it is in fact still Charlie. She is, through some means, managing to both be Shadow Queen Charlie, sitting upon the throne, AND horrific shifty Grue.