Something was working in Roadstrum's little ape head. When he had been a man he had always known when it was time for action; particularly he had always known the last moment when action was still possible. He knew now that that moment was come very near. … Then a blinding light burst upon Roadstrum, and he saw the truth of the situation. Many things Roadstrum was not, and it was sometimes wondered why he was the natural leader of all the men. He was their leader because he was a man on whom the blinding light sometimes descended.

Ch. 6 - Space Chantey (1968)