From Congo:
"I can help you with that," Munro said, and he pushed Elliot out of the plane.

Munro watched him fall away, his grin instantly gone. Munro had adopted his hearty demeanor only for Elliot's benefit. "If a man has to do something dangerous," he said later, "it helps to be angry. It's for his own protection, really. Better he should hate someone than fall apart. I wanted Elliot to hate me all the way down."

Munro understood the risks. The minute they left the aircraft, they also left civilization, and all the unquestioned assumptions of civilization. They were jumping not only through air, but through time, backward into a more primitive and dangerous way of life - the eternal realities of the Congo, which had existed for centuries before them. "Those were the facts of life," Munro said, "but I didn't see any reason to worry the others before they jumped. My job was to get those people into the Congo, not scare them to death. There was plenty of time for that."