First off, a note about the tone of this book. To J. T. McIntosh the cultural, sexual and equality revolutions of the 1960s were just things that happened to other people. The protagonist Rex is by turns sexist, misogynistic and even prone to rape. He is not a likeable character and his supporting cast of two women - Regina and Venus - are cardboard cutouts designed to showcase Rex’s superiority. Now for the plot. Rex wakes up in a clear case under a transparent dome on a small bubbleworld. Two other cases are there. One marked Regina and the other marked Venus. Both beautiful, and both eventually woken to their plight. Around the dome are six exits, which they eventually discover are Gateways, using matter transmission, to other planets. The aim of the exercise seems to be to visit each world in turn and evaluate its progress, from a completely unbiased perspective. Part of a more sinister plan known as Project Supremo, Rex finds that his common-law wife Regina is a Twentyman (a person containing the essences of nineteen suicides), while Rex and Venus are Millionmen (you do the math). The true purpose of Project Supremo is both shocking and, by the end, of little interest to the reader. You can find better ways to spend a day.