Sara Pennypacker is the author of several acclaimed novels for middle-grade readers, including The Lions' Run; the #1 New York Times bestselling Pax (a National Book Award Longlist title) and Pax, Journey Home; the Clementine series (Boston Globe-Horn Book Award Honor) and its spinoff series, Waylon; and Summer of the Gypsy Moths, Here in the Real World, and Leeva at Last. She divides her time between Cape Cod and Southern California.