9.4/10 - Again, the series up the ante yet again with the Battle of the Labyrinth, the most complex, emotional and gripping (I read it in a few days) of the series yet. Seriously, when you write it down there's a LOT going on here, and all of it's interesting. - The main quest to find Deceadlus before Camp Half-Blood is destroyed - Annabeth and Percy's semi-romantic relationship - Rachel Elizabeth Dare becoming a major character - Nico trying to summon Bianca with the help of King Minos - Grover searching for Pan - Luke resurrecting Kronos - Percy nearly releasing Typhon - Percy and Calpsyo briefly falling in love - Tyson meeting Biaries - The absolutely epic final battle This one is a blast from start to finish. It's Harry Potter levels of quality, and I love the Harry Potter books. Incredible.