The puppet masters - Hardcover

Like many people, I go way, way back with Heinlein. My very favorite book (and one that stands out in my mind--and with much affection--to this day) is Tunnel in the Sky. I really, really wanted to go off to explore new worlds with a covered wagon and horses, like the hero does at the very end of the book. But one of the nice things about Robert Heinlein is that he's got something for everyone. One of my best friends has a different favorite: Podkayne of Mars. Go figure.
                        --Shelly Shapiro, Executive Editor

Earth was being invaded by aliens and the top security agencies were helpless: the aliens were controlling the mind of every person they encountered. So it was up to Sam Cavanaugh, secret agent for a powerful and deadly spy network, to find a way to stop them--which meant he had to be invaded himself!