Personally, I LOVE the Alex Rider series!
Here are the titles and order that they're in:
1. Stormbraker
2. Point Blank
3. Skeleton Key
4. Eagle Strike
5. Scorpia
For full summeries of them and more, check out this link here
Now, Anthony Horowitz is British, so the Brits already have Scorpia. In fact, they got it way back in April. They already have paperback! As does Canada, France, Germany, Japan (do you know how hard it is to search amazon.co.jp?! The whole site is in Japenese-duh-and the only way I reconized the book was from the cover!)
Of course, this is one of the reasons I am begging my parents to take me to Toronto next summer. . . . .