Stormbreaker (Alex Rider #1) - Anthony Horowitz
I'm a bit behind the times with this one... It was released in 2004. They even made a film in 2006, which I haven't seen either. So if I'm the last person in the world to read this, then feel free to ignore! We follow Alex, who at 14 has a pretty unusual life. As an orphan he's grown up living with his uncle, travelling and doing all sorts of interesting things. Alex is told that his uncle has been suddenly killed in a car crash, but things aren't adding up. It turns out his