Problem: How can you arrange marriages with men in one solar system, women in another—and neither willing to leave his own world? I "The beasts aren't much help, are they?" Karl Allen snatched a breath of air and gave another heave on the line tied to the raft of parampa logs bobbing in the middle of the river. "No," he grunted, "they're not. They always balk at a time like this, when they can see it'll be hard work." Joseph Hill wiped his plump face and coiled some of the rope's slack around hi