Ride the Grey Planet

This one came up in an online conversation. I first got a copy of Rip Foster in Ride the Grey Planet when I was in fourth or fifth grade. In addition to the regular book classroom sales via Scholastic Book Service, we also had a yearly visit from a trailer that would be set up for a week or so. Each class would visit, plus there was "free time" to purchase for a while after school. That was where I purchased several of the Star Trek novelizations by James Blish (Star Trek One through Star Trek Four, plus Spock Must Die!), as well as a pair of books from the same publisher as Rip Foster, Digby Allen's adventures on The Forgotten Star and with the Captives in Space.

Read the book online...if you dare!