In this, the 4th Percy Jackson book, The Battle of the Labyrinth, we find our hero still battling scary monsters with his buds Annabeth, Tyson, and Grover. In teen spirit Percy has girl troubles, complete with demon cheerleaders. Grover now has a lovely tree spirit for a girlfriend (very cute,) and is on his search for the truth of Pan's disappearance.
The Titans and Kronos are getting stronger, trying to gain control of the famous Labyrinth. I thought this was not as good as the last book in the series, (probably because it was a little darker) but still quite good. My 13 yr old says she's having trouble getting through it because she thinks it drags along. I still can't wait for the next one and wish I'd bought it when I got the rest!