Mark of Athena / Rick Riordan / 586 pages

In the third book of the Heroes of Olympus series, we finally learn what Annabeth's mom, Athena, said to upset her.  We find out she has the "Mark of Athena" and that it just might destroy Rome if the prophecy is correct.  We get to see all seven heroes in action as they learn more about their powers and each other.  Can Greeks and Romans put a 2,000 year-old grudge behind them or will they start a new civil war?  Can Reyna forgive Jason for leaving her behind?  This installment of Heroes of Olympus is the best yet.