Titles by Kate O'Hearn marked with tag: juvenile fantasy
- 2023 - Atlantis: Complete Collection
- 2023 - Return to Atlantis
- 2023 - Secrets of Atlantis
- 2022 - Titans: Complete Collection
- 2021 - Escape from Atlantis
- 2021 - The Fallen Queen
- 2020 - The Missing
- 2019 - Titans
- 2016 - The End of Olympus
- 2016 - The Pegasus Complete Olympian Collection
- 2016 - War of the Realms
- 2015 - Pegasus and the Rise of the Titans
- 2014 - The Runaway
- 2013 - Valkyrie
- 2012 - Pegasus and the New Olympians
- 2012 - Pegasus and the Origins of Olympus
- 2011 - Herm's Secret
- 2011 - Pegasus and the Fight for Olympus
- 2011 - Pegasus and the Flame
- 2009 - Elspeth
- 2008 - Kira