I have read all six books. Sobrang page turner siya for me. The only fictional characters are Sophie and Josh Newman. The rest were rooted from mythology and history. Cool lang talaga ng pagkakagawa ng plot per series.
I've read the first two books.. Really amazing.. It's like Harry Potter, Vampire Diaries, Greek Mythology and zombies and all the unbelievables all stitched into one series. I really love it. Nakakainis lang na ang hirap hanapin nang next series... ugghh.. 5 stars para sa book na to