Don't Worry, FelixDon't Worry, Felix by Yohann Devezy and Katherine Alice tells the story of Felix, a young boy with a big problem. It's a big, red, round problema worry balloon that follows him everywhere he goes. As his heart thumps, his stomach twists, and his toes wiggle, the worry balloon grows and grows. It stops him from doing what he wants to do. However, when Felix learns a special trick, things start to change