midnight
Round the open windows the curtains hung unmoving . Ivor , fanning himself with the portrait of an Astral Being , looked out into the darkness and drew a breath . `` The air 's like wool , '' he declared . `` It will get cooler after midnight , '' said Henry Wimbush , and cautiously added , `` perhaps . '' `` I sha n't sleep , I know . '' Priscilla turned her head in his direction ; the monumental coiffure nodded exorbitantly at her slightest movement . `` You must make an effort , '' she said .