The difference is that this time Kerry is armed. For starters, she's picked up more than a few tricks of the witchy trade herself. To boot, she's got the knowledge that everything is definitely not as it once seemed. So even if her quest gets blown off track, Kerry is prepped.
The trick to navigating her topsy-turvy path is figuring out who she can trust. As Glinda once astutely asked, "Are you a good witch, or a bad witch?" This winter, that's the million-dollar question.