This satisfyingly thick volume of Murray Leinster’s work includes two “fix-up” novels: The Planet Explorer and The Forgotten Planet. The Forgotten Planet affected me powerfully when I read it as a kid: a starship is marooned on a planet whose existence has been forgotten by the galactic bureaucracy. The marooned crew have to battle the planet’s giant insects to survive. At the time, I read it as a metaphor for surviving Junior High School. The Planet Explorer shows how Leinster invented the SF concept of “First Contact.” It also includes the Hugo Award-winning novella, “Combat Team.” Leinster knows how to spin a story and Planets of Adventure includes some of his best work.