User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-7594114-20130805115703

Um,this question isn't about HoH,but I have to ask:the book in Percy Jackson & the Olympians aren't called,for example,"Percy Jackson and the Lightining Thief" right?The first book (like all the books in the 1st series) is called "The Lightning Thief",not "Percy Jackson and the Lightining Thief".So,why in this cover it says "Percy Jackson and the Battle of the Laybyrinth" instead of "The Battle of the Labyrinth"?