Bestseller Green injects a topical note into an otherwise paint-by-numbers work.After a terrorist attack on an Amtrak train kills 39-year-old Tom, his death serves as the catalyst for changes in the lives of four estranged schoolmates he left behind in England.Reuniting at Tom's memorial service are Holly, a former free spirit uncomfortably forced into becoming a suburban matron by her workaholic, social-climbing husband; Olivia, a lonely director of an animal shelter; Paul, a writer whose blissful marriage with his fashionable wife is marred by their inability to conceive; and Saffron, a recovering alcoholic actress secretly involved with a married Hollywood megastar.Tom's death reignites their friendship, causes them to reevaluate their lives and sends them marching toward a concluding warm fuzzy.Green's writing is competent, though her characters feel more like embodiments of their problems than actual people.