Nina and the Mysterious Mailbox

"Girls running for office, secret leadership lessons from the past, and a dash of mysterious mailbox magic? Yes please!" —Kate Messner, New York Times best-selling author of Breakout and the History Smashers series A school election. A mysterious mailbox. And a letter from . . . Cleopatra? Middle school is so weird. Nina is determined to help her best friend Maya win the race for 6th grade representative. But when she uses her robotics skills to spy on Maya’s opponent, the girls wind up in deten