McMillan's new novel, "Getting to Happy," is a sequel that resumes the story some 15 years later. All four women are back, but this time, of course, they're middle-aged. The issues of their youth have morphed into new ones. There are children now from failed relationships and grandchildren, too, along with failed businesses and second mortgages. Each of the four is in her 50s, or about to be, and not quite sure what to do with herself.