Sarah Mlynowski Sarah Mlynowski is the New York Times bestselling author of the Whatever After series, the Magic in Manhattan series, Best Wishes, Gimme a Call, and a bunch of other books for teens and tweens, including the Upside-Down Magic series, which she cowrites with Lauren Myracle and Emily Jenkins and which was adapted into a movie for the Disney Channel. Originally from Montreal, Sarah now lives in Los Angeles with her family. Visit Sarah online at sarahm.com and find her on Instagram, Facebook, and X at @sarahmlynowski.