Titles by Ray O'Ryan marked with tag: juvenile sf
- 2022 - The Galaxy Zack Collection #2
- 2018 - Snow Place Like Home
- 2017 - Cosmic Blackout!
- 2017 - Ready, Set, Blast Off!
- 2016 - Science Fair Disaster!
- 2016 - Space Camp
- 2015 - A Haunted Halloween
- 2015 - Galaxy Zack: 3 Books in 1!
- 2015 - Operation Twin Trouble
- 2015 - Return to Earth!
- 2014 - A Galactic Easter!
- 2014 - Drake Makes a Splash!
- 2014 - The Annoying Crush
- 2014 - The Galaxy Zack Collection: A Stellar Four-Book Boxed Set
- 2013 - A Green Christmas!
- 2013 - Hello, Nebulon!
- 2013 - Journey to Juno
- 2013 - Monsters in Space!
- 2013 - The Prehistoric Planet
- 2013 - Three's a Crowd!