Percy Jackson...yes...and then my sons checked out a lot of extra mythology books from the library to learn more.

Narnia series...yes

Golden compass (I think that is a series of three)

With a little review discussion about drugs being bad, my son read and enjoyed the complete works of Sherlock Holmes. And a little discussion about word usage evolving and not to use a certain word in his writing because it means something different now than it did then (after he asked me about a word used to mean "blurted" but now a days is only used in a sexual connotation).