This volume collections 10 young adult science fiction novels: 7 in the Tom Corbett, Space Cadet series, plus Rip Foster Rides the Gray Planet, by Blake Savage; Star Born, by Andre Norton; and The Secret of the Ninth Planet, by Donald A. Wollheim.And don't forget to search this ebook store for more entries in the Megapack series, covering science fiction, fantasy, mystery, adventure, ghost stories, and much, much more!