"Hermione’s not in a costume either," Pansy said as Jean smiled his thanks and fixed the feathered mask over his face.  That seemed to dim much of his allure and there was an audible exhalation as half the vast room returned to whatever they had been doing before Jean arrived.  Hermione remained unmoved one way or the other.  She'd been more interested in Blaise and even that would have cut off abruptly if he'd so much as brushed a finger against her arm.