Blast off with books five through eight of the Galaxy Zack series in this stellar collectible paperback boxed set! Rejoin Zack Nelson on his galactic adventures as he learns that two best friends are better than one, spends a green Christmas in Nebulon, travels to the candy planet Gluco, and teaches his best friend Drake how to swim! With easy-to-read language and illustrations on almost every page, the Galaxy Zack chapter books are perfect for beginning readers. This out-of-this-world boxed set includes: Three's a Crowd! A Green Christmas! A Galactic Easter! Drake Makes a Splash!