From the description:
"It’s not the end of the world. That’s what depressed, 39-year-old Tess Eliot has to remind herself after losing her newspaper column (“Tess Knows Best”) and being dumped by her boyfriend for a younger woman (a feng shui expert? Really?) But when the out-of-work Tess gets hired by a wacky cult (W.O.O.S.H.) to write an etiquette guide as part of the preparation for what the cult believes is imminent global catastrophe, she begins to ask herself: “Wait--could the world actually be coming to an end?”
At first, Tess fakes her way through chapters like “Boundaries in the Bunker” and “Cannibalism: Yes or No?” Then she uncovers what appears to be a bona fide (if somewhat bizarre) secret plot for world destruction, and she embarks on a life-changing odyssey of her own—involving travel to far-off places, all-too-close encounters with touchy-feely survivalists and conspiracy theorists, and one handsome guy who seems way too perfect."