Title rated 4.2 out of 5 stars, based on 56 ratings(56 ratings)
Book, 2013
Current format, Book, 2013, All copies in use.
Book, 2013
Current format, Book, 2013, All copies in use. Offered in 0 more formats
On the planet Nebulon in 2120, Zack joins his school's Explorer's Club and visits Juno, a planet made of crystals, but he is less than thrilled when he is partnered with the class bully
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