For sale are Books 4 to 7 of the Alex Rider Series by British author Anthony Horowitz.
When Alex Rider's uncle is killed , he discovers that he was a spy for Britain's top secret intelligence agency. And now Alex has been recruited to find his uncle's killers. Books are previously read paperbacks..

(original copyright date precedes date of paperback edition)
ALEX RIDER SERIES:
1. Book 4: Eagle Strike - 2003, Puffin/Penguin Books 2006.
2. Book 5: Scorpia - 2004, Puffin/Penguin Books 2006.
3. Book 6: Ark Angel - 2006, Puffin/Penguin Books 2007.
4. Book 7: Snakehead - 2007, Puffin/Penguin Books 2008.