SOME NIGHTS are merely dark, others are dark in a suggestive way as though something ominous, mysterious, is going to happen. In certain remote outlying suburbs, at any rate, this seems true, where great spaces between the lamps go dead at night, where little happens, where a ring at the door is a summons almost, and people cry "Let's go to town!" In the villa gardens the mangy cedars sigh in the wind, but the hedges stiffen, there is a muffling of spontaneous activity.