Hannah arrived with Ernie and gift in tow, excited to have fun but wary about the possibility of Wayne's mysterious Zacharias sighting repeating itself. And, of course, he was there! Which thoroughly ruined her mood.
She spent a lot of the party grumpily hanging along the side of the room, eating h'orderves, chatting darkly to Ernie (and Susan, assuming she came), and glaring daggers at Zacharias' back.