In her wildest dreams, spunky and impulsive nineteen-year-old Mary Kate Lapp never imagined herself behind a schoolteacher's desk. A run-in (literally) with the schoolteacher compels her to act as a substitute teacher, just as her restless desire to see the world compels her to apply for a passport . . . just in case. The only thing of interest to M.K. in the sleepy Amish community of Stoney Ridge is the unexplained death of a sheep farmer that coincided...