For Noah, living in the Northern Hemisphere, it’s obvious and right that the festival of lights take place during the winter for Nora, it’s just as plain and appropriate that Hanukkah should happen during the summer, as it does in the Southern Hemisphere. In Elissa Brent Weissman’s cheerful holiday book, “Hanukkah Upside Down,” two cousins-one in New York, one in New Zealand-spar over which of their families has the best celebration of Hanukkah.
