Nancy Ohlin is the author of the Blast Back! series, the YA novels Always, Forever and Beauty, and the early chapter book series Greetings from Somewhere under the pseudonym Harper Paris. She lives in Ithaca, New York, with her husband, their two kids, two cats, a bunny, and assorted animals who happen to show up at their door. Visit her online at nancyohlin.com. Roger Sim� is a children's book illustrator whose passion for illustration began as a kid when he would spend his school days doodling in the margins of his books. He lives in Barcelona with his wife, son, and greyhound named Duna.