Boo-Boo Pennyroyal did not like her male and female slaves to mingle. In the operas that she adored, young people brought together in tragic circumstances were forever falling in love with each other and then throwing themselves off things (cliffs, mostly, but sometimes battlements, or rooftops, or the brinks of volcanoes). Boo-Boo was fond of her slaves, and it pained her to think of them plummeting in pairs off the edges of Cloud 9, so she nipped all tragic love affairs firmly in the bud by forbidding the girls and boys to speak to one another. Of course, young people being what they were, girls sometimes fell in love with other girls, or boys with boys, but that never happened in the operas, so Boo-Boo didn't notice.

Autor: Philip Reeve