How can you know something is real—especially when you can't see it?Hope and Joy are eight-year-old twins who love asking big questions. When kids at school say believing in God is silly, the girls begin to wonder: what if their classmates are right?With gentle encouragement from Mom and Dad—and the playful antics of their dog, Rufus—the twins begin to piece together clues in the world around them that point to something bigger than themselves.And a...