Things where complicated enough before those weird jar babies slammed the consciousness of Catherine Donovan into Moon Stones body. Now you have Moon Stone and Catherine fighting for control and every one else trying to figure out what is going on.
In the end what we get is Moon Stone retaking control of her body and the two half's of Ms. Marvels personality are reemerged making her whole.
My favorite part has to be when a rather ticked off Ms. Marvel rips the moon stone from um Moon Stone taking her powers away.
Sure she gets the stone back at the very end of the book but still this was just sweet!