<p> Meet Jack. </p> <p> He's almost six years old. And that's almost grown up. </p> <p> After all, he can almost ride a big bike just like his older brother. And he almost never gets scared. </p> <p> This spunky little almost-six-year-old is ready to take on the world. </p> <p> Well, almost. </p> <p> Richard Torrey's sweetly funny tale is sure to resonate with any child who just can't wait to be big. </p>