(pg. 531) This book ended with the What. What is the What? The what is the unknown.
"I told them that the mistakes of the Dinka before us were errors of timidity, of choosing what was before us over what might be. Our people, I said, had been punished for centuries for our errors, but now we were being given a chance to rectify all that... This is our chance to choose our own unknown." (Eggers 531) So the Dinka chose the cattle, what they could see, because they were afraid of what the What could be. They never took a chance. Now Achak, Valentino, Gone Far, Sleeper, Dominic, have chosen the What, the unknown, America.