Fans of this chapter-book series can join Zack as he takes a trip to the planet Juno, makes an amazing discovery, and learns the importance of teamwork! Illustr

Moving from Earth to the futuristic planet Nebulon in 2120, eight-year-old Zack is nervous about starting school and meeting people.

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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 partn

Zack learns that appearances aren’t everything when he has an up-close-and-personal monster encounter in this chapter book adventure. Zack is shocked when he