Charlie Fry is back - and facing his toughest challenge yet.Evil manager Chell Di Santos is desperate to know the secret behind the Football Boy Wonder's stunning success. And he'll do anything to find out.As Charlie prepares for the biggest game of his season against bully-boy Adam Knight, he is unaware the mysterious Football Spy is watching his every move.Hall Park Magpies are flying high. But with every win, the spy gets closer to discovering Charlie's big secret and ruining Charlie's football career forever.The Football Spy is the fourth part of the best-selling Charlie Fry Series, written by Martin Smith. It is aimed at children aged 7 to 13.