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.

Though the Greek and Roman crewmembers of the Argo II have made progress in their many quests, they still seem no closer to defeating the earth mother, Gaea. Her giants have risen -- all of them -- and they're stronger than ever. They must be stopped before the Feast of Spes, when Gaea plans to have two demigods sacrificed in Athens. She needs their blood -- the blood of Olympus -- in order to wake. The demigods are having more frequent visions of...

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.

"Seventeen-year-old Pierce Oliviera knew by accepting the love of John Hayden, she'd be forced to live forever in the Underworld. But now her happiness and safety are threatened because the Furies have discovered that John has broken one of their strictest rules, and the only way to fix the balance is for someone to die"--

Determined to prove that her prophecies are real, Cassandra sends special fortune cookies to Mount Olympus Academy, and her fortunes end up coming true in very unexpected ways.

Seeking to become immortal like the other Goddess Girls, Medusa searches for a magical necklace, an effort that is compromised by her mean reputation, her snaky hair, and unexpected consequences.

Percy Jackson's hope for a normal senior year is shattered as the gods present him with three quests, beginning with the retrieval of Zeus's goblet, in order to get the necessary three letters of recommendation for college.

When Orpheus, a charming mortal musician, arrives at Mount Olympus Academy, he asks Persephone to help reunite him with his lost love, Eurydice, but trying to manipulate the rules of the underworld puts her at odds with her boyfriend, Hades.

With help from her new friend Orion, seventeen-year-old Helen Hamilton descends into the Underworld in search of a way to break the Furies' blood curse and prevent the start of another Trojan War.

Seventeen-year-old Karou, a lovely, enigmatic art student in a Prague boarding school, carries a sketchbook of hideous, frightening monsters--the chimaerae who form the only family she has ever known.