Budo is lucky as imaginary friends go. He's been alive for more than five years, ancient in the world of imaginary friends. When eight-year-old Max stops believing in him, he will disappear. But Max is different from other kids – some say he has Asperger's Syndrome. And when danger threatens Max, Budo must decide which is more important: Max's happiness or Budo's very existence. "Quirky and heartwarming."—Kirkus