Summary of the Percy Jackson books:
-Percy Jackson and the first unexpected quest
-Percy Jackson and the second unexpected quest
-Percy Jackson and the third unexpected quest
-Percy Jackson and the fourth unexpected quest
-Percy Jackson and there's no quest this time in leading a war against my grandfather

Summary of the Heroes of Olympus books:
-Where's Percy?
-There's Percy!
-The book that broke our hearts
-The book that Rick sort of apologized in
-The book where Percy got a bloody nose