The book that Kronos takes over... or at least he tries to.

In one part of this book, Annabeth said, "Poison on the dagger, stupid of me, right?"  That was one of my favorite parts.

This is the last book of the series!  I was disappointed that the series was over, but Rick Riordan still has Kane Chronicals and the Heroes of Olympus Chronicals.  Speaking of Kane Chronicals, I'm reading the first Kane Chronicals book now.