Henry's mum and dad think his new friend Gary is bad news. But Dad's got worse problems at work. If he doesn't win the charity go-kart race, he might lose his job! There's trouble ahead, that's for sure. But nobody reckons on a mystery boy racer who turns up at the track. He's got a surprise in store for everyone! Other titles in the series are: Young Robin's Hood; A Footballer Called Flip; The Magic Sneeze; Aliens Stole My Dog; and Whizz The Fleabag. .