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.

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.

"Astraea, Zephyr, and their friends travel to a dangerous jungle world in this second book of the Titans series"--

Despite being the muse of epic poetry, Calliope has trouble putting her bright and fun ideas into action.

When things start to go wrong after Nyx, goddess of the night, enrolls at Mount Olympus Academy, she has to determine who is responsible for a series of disasters while trying to change the other students' minds about nighttime.

The Greek and Roman demigods will have to cooperate in order to defeat the giants released by the Earth Mother, Gaea. Then they will have to sail together to the ancient land--Greece itself--to find the Doors of Death.

After giving Athena a makeover Aphrodite becomes jealous of her friend, but she focuses on figuring out how to help a mortal win a race against Atalanta, which will result in either their marriage or his death.

Despite the warnings of her friends at Mount Olympus Academy, Persephone befriends bad-boy Hades, but following her mother's advice to "go along to get along" complicates her relationships with all of them.

"After angering his father Zeus, the god Apollo is cast down from Olympus. He must learn to survive in the modern world until he can somehow find a way to regain Zeus's favor"--

Tasked by Hestia to rescue a rightful queen of a magical island, Athena teams up with Hercules to face against Circe, a mysterious enchantress.