1970’s Whipping Star is the third piece and first novel-length work in Frank Herbert’s ConSentiency series. I hope I’ve worked out how I am going to number Whipping Star by the time I post this review.
The ConSentiency spans the Milky Way. While faster than light drives exist, all are too slow for galactic travel. What made the ConSentiency practical was the jumpdoor. Jumpdoors allow people to step from the surface of one planet to the surface of another. Jumpdoors were so clearly useful that nobody questioned their enigmatic Caleban creators too closely about how exactly they worked.
Jumpdoors have some interesting undocumented features. For example, someone who knows their jumpdoors can use them to kill an astonishing fraction of the population of the ConSentiency in one go.