Series

Galaxy Zack

by Ray O'Ryan, Jason Kraft

14 books in reading order

  1. #1 Hello, Nebulon! Ray O'Ryan · 2013
  2. #2 Journey to Juno Ray O'Ryan · 2013
  3. #3 The Prehistoric Planet Ray O'Ryan · 2013
  4. #4 Monsters in space! Ray O'Ryan · 2013
  5. #5 Three's a crowd! Ray O'Ryan · 2013
  6. #6 A Green Christmas! Ray O'Ryan · 2013
  7. #7 A galactic Easter! Ray O'Ryan · 2014
  8. #9 The annoying crush Ray O'Ryan · 2014
  9. #10 Return to Earth! Ray O'Ryan · 2015
  10. #12 Operation Twin Trouble Ray O'Ryan, Jason Kraft · 2015
  11. #13 Science fair disaster! Ray O'Ryan · 2016
  12. #14 Space camp Ray O'Ryan · 2016
  13. #16 Cosmic Blackout! Ray O'Ryan · 2017
  14. #17 Snow Place Like Home Ray O'Ryan, Jason Kraft · 2018

Also in the series

  1. Monsters in Space! (Galaxy Zack Book 4) Ray O'Ryan · 2013
  2. Drake Makes a Splash! (Galaxy Zack Book 8) Ray O'Ryan · 2014