"Greek and Roman demigods from the Prophecy of Seven must work together to seal the Doors of Death--and help Percy and Annabeth escape the Underworld in the process"--

Haden, Prince of the Underrealm, and Daphne, a mortal girl, are stuck in separate realms, racing time to save each other and fulfill their destiny before the monstrous Keres destroys everything they know.

Married at a tender age to the Spartan king Menelaus, the beautiful Helen bears him a daughter and anticipates a passionless marriage before falling in love with the Trojan prince Paris, with whom she flees to Troy, with devastating consequences.

Athena's arrogance throws a wrench into her plans to improve King Minos's labyrinth.

"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"--

"Demon has always counted on his magical medicine box to help him cure the sick beasts on Mount Olympus. But Chiron, his new healing master, insists Demon learn to find the cures on his own. Demon's new skills are soon put to the test when he must save an ailing phoenix--or face the wrath of its fiery guards!"--

After capturing jealousy from a priestess in Crete, Pandy, her friends Alcie and Iole, and her little dog Dido, brave many obstacles as they travel to Egypt in search of the second of the seven evils--vanity.

"When Titans Astraea and Zephyr find a human boy on their world, they must figure out how he got there and why. What they uncover is a plot to take over Titus and ultimately the universe"--

Haden, Prince of the Underrealm, is determined to defy his fate to protect Daphne, even as they and their small group of friends continue the search for the lost Kronolithe, the key of Hades--but his undeclared love for a mortal girl is a terrible risk, and they must both decide what they are willing to sacrifice to protect one another.

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.