While the Olympians struggle to contain the rampaging monster Typhon, Kronos begins his advance on New York City, where Mount Olympus stands virtually unguarded. Now it's up to Percy Jackson and an army of young demigods to stop the Lord of Time.

When demonic cheerleaders invade his high school, Percy Jackson hurries to Camp Half Blood, from whence he and his demigod friends set out on a quest through the Labyrinth, while the war between the Olympians and the evil Titan lord Kronos draws near.

Caught in the middle of an ancient power struggle, Emily and Pegasus must venture to Diamond Head volcano in Hawaii to track down the one thing that can save Olympus--before the Titans get there first.

The long-awaited prophecy surrounding Percy Jackson's sixteenth birthday unfolds as he leads an army of young demigods to stop Kronos in his advance on New York City, while the Olympians struggle to contain the rampaging monster, Typhon. "Los mestizos han dedicado mucho tiempo a prepararse para la batalla decisiva contra los titanes, aunque saben que sus posibilidades de obtener la victoria son mínimas. El ejército de Cronos es ahora más formidable...

Astraea, Zephyr, and their team have freed the Titan prisoners and safely hidden them on Earth, and now are headed to Nesso's jungle world to get help fighting the aliens who want to invade Titus. On the jungle world, the team is met with dangers they never imagined, from famished dinosaurs to the blistering sun. Zephyr is critically wounded, forcing Jake and Tryn to travel to Xanadu for help, leaving Astraea and three centaurs behind to guard Zephyr...