Live and Let Spy
I apologise on behalf of my terrible writing, I started this book over five years ago and re-reading it makes me want to cringe, but alas, if you would like to read it by all means go for it!
Meet Lilian Valentine, the typical high school girl with the overly typical high school problems. However, her life gets thrown into the air when she finds that her childhood best friends (also the high school heartthrob as usual in these sort of books) turns out to be an agent for a secret spy organisation under the name of MI12.
With little training and little time, Lilian is thrown in to the deep end, along with her best friend, and a very charming blonde haired protagonist named James White, to investigate and stop the plans of a very wealthy arms dealer.