Two classic Robert A Heinlein novels in one volume The Man Who Sold The Moon & Orphans of the Sky In The Man Who Sold the Moon D D Harriman is a billionaire with a dream the dream of space for all mankind The method? Anything that works Maybe in fact Harriman goes too far But he will give us the stars & in Orphans of the Sky Hugh had been taught that according to the ancient sacred writings the Ship was on a voyage to faraway Centaurus But he also understood that this must be allegory for a voyage to spiritual perfection After all the real world was only metal corridors & nothing else right? & then Hugh begins to suspect the truth