Stormbreaker by Anthony Harowitz

Stormbreaker is about a boy called Alex Rider and his uncle, who dies in a car crash[well thats what they tell him.].  Then he finds out that his uncle was a secret agent and  Alex becomes one himself.
       Alex goes on a dangerous mission and finds out that his uncle actually got shot!!  AND the guy who killed him saved Alex's LIFE!!
by Julian Eldred