Cold War anxieties play out in a sensitively told story set during the Cuban missile crisis in the 1960s, perfect for fans of Gary Schmidt and Kristin Levine. Joanna can't get over how her brother broke his promise to never leave like their dad did. Sam is thousands of miles away on a navy ship, and no matter how often he sends letters, Joanna refuses to write back. When she makes a promise, she keeps it. But then President Kennedy comes on TV with...