Kate O'Hearn

Emily, Joel, Paelen, Pegasus, and the sphinx Alexis investigate a series of incidents back on Earth, and discover that the CRU has been cloning Olympians and Nirads--and now they want a clone of Emily! Emily and her friends try to stop the CRU before Jupiter puts an end to the Earth once and for all.

When Freya takes up her position as a Valkyrie, she's not excited to reap the souls of fallen soldiers as required of her. She'd prefer to avoid humans and their wars altogether. And when she reaps her first soldier, she finds herself thrust into the mortal world where she begins to find friendship with the humans and realizes she could be wrong about them. But she'll soon have to choose between her immortal and mortal friends, and it won't be an...

Riley thought she was through with Atlantis, but when the Atlanteans who came back with her (and are currently living in the basement) become gravely ill it becomes clear they must all return to Atlantis--and face the enemies they made during their escape.

Emily is contending with great changes, including diminished powers, but goes to London to rescue Agent B and others from the CRU, where she makes horrible discoveries about the agency's history.

Reborn as the Flame, thirteen-year-old Emily has saved Olympus from destruction but when the gruesome Nirads begin a new invasion, Emily and her friends become entangled in the conflict as old grudges are unearthed and new enemies are discovered.

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.

"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"--

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...

Kira has done all that she can to protect and shield her younger sister, Elspeth. Now it's time for Elspeth to grow up. When Paradon's muddled magic sends the two sisters traveling through time to different eras, new challenges and terrifying threats await each. Elspeth is in the past and Kira in the future. And Kuira must find a way to get back to Elspeth and reunite her family.