TWO YEARS LATER THEY were dancing in the kitchen to “Lady Be Good.” Maytree turned down the radio and ran his notion by Lou. It is an unnameable boon love hauls down, that people rightly prize as the best of life, and for which it fusses over weddings. Not only will a cave-dwelling pair cull food and kill so kids thrive, but their feeling for each other, not to mention for the kids, brings something beyond food people need. Each felt it between them when they danced. It was real as anything the mind could know. Her eyes’ crystal, her split-faced smile, agreed. He rolled the volume knob. Oh sweet and lovely.