Chasing Punker is one of the most daring experiments ever undertaken in science fiction by the legendary author of the classic bestseller Starship Troopers. Earth is under threat of alien invasion. Only four people know about this and can prevent the tragedy. But the heroes fall into the trap of sinister aliens, and the only way they can escape is to leave this plane of existence on their space yacht and find themselves in a parallel universe. Up to this point, the novel is similar to the famous "Number of the Beast", but after all the storylines diverge, the heroes find themselves in the universes of "Chasing Punker": the worlds of Edgar Rice Burroughs, Frank Baum and the father of space opera, E. E. "Doc" Smith. A fitting farewell from one of the most inventive science fiction writers who ever lived: a parallel novel of parallel universes, as well as a grand adventure that pits the forces of good against evil in a way that only Heinlein could.