Everyone had, of course, seen the chapter from the Epic where Doob had gone out on his last space walk with Eve Dinah, looked up at the walls of iron rising from the valley floor, and foreseen that one day a ceiling of glass would be built over the top, turning the "Vale of the Eves" into a huge greenhouse where children would be able to float about unencumbered by space suits, eating fresh greens from terraced gardens. It was probably the biggest tearjerker in the whole Epic, and a perennial favorite. All of Doob’s predictions had, of course, come true. Cradle had ended up supporting a population of several thousand, until later generations had been obliged to push outward.