Great mysteries. Total page-turner. Heart-pounding scenes. Impressive plotting with all the characters so damning brilliant. 
 And hey, are you a hardcore Percy-is-for-Annabeth-and-Annabeth's-for-Percy-only thingy? Well, prepare yourself for the trill because finally, FI-NA-LLY, (view spoiler)[Percy got an unexpected kiss from Annabeth! (hide spoiler)] 
 Anyway, I was frustrated with Percy when he met this Calypso girl. And there was also this mortal gal named Rachel Elizabeth Dare on the scene. That's why Annabeth got so cranky most of the time. 
 I was so annoyed I feel like Annabeth and wanted to rate this book a 4-star rating but since she gave our hero a kiss, okay, that was already a plus 5 for me. :) 
 And oh, the battle between the demigods and Kronos army (at Camp half-blood) was so epic it reminded me of the movie Prince Caspian :DD