I got the book the day it came out,October fourth, on my Kindle. The Kindle version was full of errors,but the book itself was extremely good. For long time Riordan fans the book will shock you in many ways. First is the cliff-hanger ending. Riordan is good at subtle cliff-hangers,but this is entirely different. Imagine your in your room reading then you appear on a random cliff in Colorado, and you'll know how it feels. I was a little disappointed in the book,but I love it all the same. Many people thought Riordan was going to go back and forth between Annabeth and Percy. It doesn't so don't get your hopes up. I hope this doesn't persuade you against getting the book. Its still an amazing book and worthy or "classicdom". The story is full of surprises,so keep your mind open, and if some of the new roman terms confuse you consult the glossary, it helps a lot. It also helps to go into it with a little background knowledge of ancient Rome.