Pallas, the daughter of Triton and messenger of the sea, enrolls at Mount Olympus Academy in this twenty-first Goddess Girls adventure!

Athena has always been above average. She's never quite fit in at Triton Junior High, but who would've guessed that Athena is actually a goddess? Principal Zeus's daughter, to be exact. When she's summoned to Mount Olympus Academy, Athena thinks she might actually fit in for the first time in her life. But in some ways, school on Mount Olympus is not that different from down on Earth, and Athena is going to have to deal with the baddest mean girl in history -- Medusa! Authors Joan Holub and Suzanne Williams put a modern spin on classic myths with the Goddess Girls series. Follow the ins and outs of divine social life at Mount Olympus Academy, where the most privileged godboys and goddessgirls in the Greek pantheon hone their mythical skills.

The mysterious Nyx, Goddess of Night, enrolls at Mount Olympus Academy in this twenty-second Goddess Girls adventure! Being the goddess of night is not as easy as it seems-after all, Nyx is in the constant shadow of Eos, Goddess of Light. When Nyx has the chance to go to MOA as an Unsung Hero, she thinks she can finally shine in her own way. But Principal Zeus is so scared of the darkness Nyx brings, he still sleeps with a nightlight! And her arrival seems to bring on more nightmares than sweet dreams. Can Nyx convince everyone that a little darkness is a good thing?

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

When Medusa suddenly gains the "Midas touch," she is delighted, but as it dawns on her that it is more curse than blessing, she seeks a cure.

When Zeus asks Athena to look after the new boy Heracles, she uses all of her famed wisdom to sort out her own problems and help him succeed.

For an extra credit project, Aphrodite begins a club for matchmaking mortals, which brings her to Egypt and face-to-face with her competition, the Egyptian goddess Isis.