The Galaxy Zack Ten-Book Collection (Boxed Set): Hello, Nebulon!; Journey to Juno; The Prehistoric Planet; Monsters in Space!; Three's a Crowd!; A ... Spash!; The Annoying Crush; Return to Earth!

My boys are 11 and nine and they both are enjoying these books. My boys have never really been big readers but I had to buy the full collection upon their request! My 11 year old could definitely read more difficult books BUT, he’s enjoying these AND he’s reading in his free time so who cares!

Story keeps kids engaged.

Our 8 year old got these for Christmas and loved them!