This series keeps getting better and better. When a mission turns out horribly wrong, Percy goes to talk with his father - and finds out that he is stretched way too thin to help. The half-bloods will have to defeat Kronos all by themselves. With a dip in a deadly river, the Great propehcy revealed, and a lot of fighting - not to mention a satyr turning into a shrub - this book is a great conclusion to the series. From Chapter 1: I Go Cruising With Explosives to Chapter 20: We Say Good-Bye, Sort Of, this book will make you sad to leave Camp Half-Blood.