Late morning flopped over hotly in the sky and turned into afternoon. The jungle became damp, and bright insects plunged like tiny knives of blue or scarlet through leaves. Wet foliage brushed against their chests, faces, and shoulders. "Why would they show you a film of something awful before taking you to the beach." Iimmi asked. "Maybe it was supposed to have made me more receptive to what we saw," said Argo. "If horror makes you receptive to what ever it was," said Iimmi, "I should have been about as receptive as possible." "What do you mean?" asked Geo. "I just watched ten guys get hacked to pieces all over the sand, remember?" They walked silently for a time. "We'll come out at the head of the river. It's a huge marsh that drains off into the main channel," said Argo presently. Late afternoon darkened quickly. "I was wondering about something," Geo said, after a little while. "What?" asked Argo. "Hama said that once the jewels had been used to control minds, the person who used them was infected--" "Rather the infection was already there," corrected Argo. "That just brought it out." "Yes," said Geo. "Anyway, Hama also said that he was infected. When did he have to use the jewels?" "Lots of times," Argo said. "Too many. The last time was when I was kidnaped. He used the jewel to control pieces of that thing you all killed in the City of New Hope to come and kidnap me and then leave the jewel in Leptar." "A piece of that monster?" Geo exclaimed. "No wonder it decayed so rapidly when it was killed." "Huh?" asked Iimmi. "Argo, I mean your sister, told me they had managed to kill one of the kidnapers, and it melted the moment it died." "We couldn't control the whole mass," she explained. "It really doesn't have a mind. But, like everything alive, it has, or had, the double impulse." "But what did kidnaping you accomplish, anyway?" Iimmi asked. Argo grinned. "It brought you here. And now you're taking the jewels away." "Is that all?" asked Iimmi. "Well," said Argo, "Isn't that enough?" She paused for an instant. "You know I wrote a poem about all this once, the double impulse and everything." Geo recited: "_By the dark chamber sits its twin, where the body's floods begin, and the two are twinned again, turning out and turning in._" "How did you know?" she asked. "The dark chamber is Hama's temple," Geo said. "Am I right?" "And it's twin is Argo's," she went on. "They should be twins, really. And then the twins again are the children. The force of age in each one opposed to the young force. See?" "I see," Geo smiled. "And the body's floods, turning in and out?" "That's sort of everything man does, his going and coming, his great ideas, his achievements, his little ideas too. It all comes from the interplay of those four forces." "Four?" said Urson. "I thought it was just two." "But it's thousands," Argo explained.