User blog comment:Maimer1882/Plot Inconsistencies/@comment-5061831-20120120021418/@comment-3146930-20120120021733

It is right there. What parts of the series dont match up with information that came out before. For example when Percy had a dream of Thalia, her eyes were green. When we actually meet her, her eyes changed to blue. Silena's description also changes between The Demigod Files and The Last Olympian.