Modern family structures are explored when an ex-stepdaughter asks for emergency babysitting help.
"Without Aaron, there would be no Caleb. Lovey had to remind herself of this sad fact. Her ex-stepson-in-law caused a lot of trouble, but, because of him, here before her was a boy for her to love, who loved her. Caleb would grow up and perhaps grow away from her—there was no shared blood, and someday he would understand that. Someday he might untie the knots of those prefixes that labelled Lovey, ex- and step-. He would turn into a teen-ager and disappear, like his father, into the night."