Yet another gods-coming-down-to-Earth-to-meddle-with-mortals fantasy, Maria Aragon’s “Deus Ex Machina” is all about five warring Olympian divinities tasked with changing the fortunes of an adult man in a span of a weekend. The man lives with a fifty-something, sex-crazed mom and two older brothers who are either egotistic or smart-alecky. I still can’t figure out why the gods chose this man, whose misfortunes pale against those of millions of other hapless creatures on earth. Worse, I’m at a loss why the book is subtitled “A Divine Comedy” because it’s not at all a funny story. Ms Aragon has written the tale poorly and mixed it with implausible twists and unremarkable turns. I take Marie Phillips’ “Gods Behaving Badly” anytime.