It's Marvel, and I would like to expand on the Alex Rider Series that Medallion briefly mentioned in her post to Samiira. Ok, so basically, the Alex Rider series can be considered a spy thriller or mystery. So far, 8 books have been released, and it is rumored that Anthony Horowitz (the author) is coming out with two others.
To read a synopsis for Stormbreaker, the first book in the series, click on the link below.
Also, I have recently discovered, that Stormbreaker is now also a graphic novel. Stormbreaker is also the only book in the series that is currently a movie, where Alex Rider is portrayed by Alex Pettyfer.
The books in order are:
2) Point Blanc
3) Skeleton Key
4) Eagle Strike
6) Ark Angel
8) Crocodile Tears
10) Endurance Point (rumored title)