cruise aboard even the largest spaceliner had not been given sufficient thought; the law professor who had signed on as master-at-arms was later heard to complain bitterly about the complete absence from the
ship's inventory of hypodermic guns and knockout gas. On the other hand, there had been no deaths or
serious injuries, only one pregnancy, and everyone had learned a great deal, though not necessarily in the areas that the organizers had intended. The first few weeks, for example, were mostly occupied by
experiments in zero-gravity sex, despite warnings that this was an expensive addiction for those
compelled to spend most of their lives on planetary surfaces.
Other shipboard activities, it was widely believed, were not quite so harmless. There were reports of
tobacco-smoking — not actually illegal, of course, but hardly sensible behavior when there were so many safe alternatives. Even more alarming were persistent rumors that someone had smuggled an Emotion
Amplifier on board Mentor. The so-called joy machines were banned on all planets, except under strict
medical control; but there would always be people to whom reality was not good enough, and who would
want to try something better.
Notwithstanding the horror stories radioed ahead from other ports of call, Titan had looked forward to welcoming its young visitors. It was felt that they would add color to the social scene, and help establish some enjoyable contacts with Mother Earth. And anyway, it would be for only a week...
Luckily, no one dreamed that it would be for two months. This was not Mentor 's fault; Titan had
only itself to blame.
When Mentor fell into its parking orbit, Earth and Titan were involved in one of their periodical
wrangles over the price of hydrogen, F.O.B. Zero Gravitational Potential (Solar Reference). The
proposed 15 percent rise, screamed the Terrans, would cause the collapse of interplanetary commerce.
Anything under 10 percent, swore the Titanians, would result in their instant bankruptcy and would make it impossible for them to import any of the expensive items Earth was always trying to sell. To any
historian of economics, the whole debate was boringly familiar.
Unable to get a firm quotation, Mentor was stranded in orbit with empty fuel tanks. At first, her
captain was not too unhappy; he and the crew could do with the rest, now that the passengers had shuttled down to Titan and had fanned out all over the face of the hapless satellite. But one week stretched into two, then three, then a month. By that time, Titan was ready to settle on almost any terms; unfortunately, Mentor had now missed her optimum trajectories, and it would be another four weeks before the next
launch window opened. Meanwhile, the five hundred guests were enjoying themselves, usually much
more than their hosts.
But to the younger Titanians, it was an exciting time which they would remember all their lives. On a
small world where everyone knew everybody else, half a thousand fascinating strangers had arrived, full of tales, many of them quite true, about the wonders of Earth. Here were men and women, barely into
their twenties, who had seen forests and prairies and oceans of liquid water, who had strolled unprotected under an open sky beneath a sun whose heat could actually be felt...
This very contrast in backgrounds, however, was a possible source of danger. The Terrans could not
be allowed to go wandering around by themselves, even inside the habitats. They had to have escorts,
preferable responsible people not too far from their own age group, to see that they did not inadvertently kill either themselves or their hosts.
Naturally, there were times when they resented this well-intentioned supervision, and even tried to
escape from it. One group succeeded; it was very lucky, and suffered no more than a few searing whiffs of ammonia. Damage was so slight that the foolish adventurers required only routine lung transplants, but after this exploit there was no more serious trouble.
There were plenty of other problems. The sheer mechanics of absorbing five hundred visitors was a
challenge to a society where living standards were still somewhat Spartan, and accommodation limited.
At first, all the unexpected guests were housed in the complex of corridors left by an abandoned mining operation, hastily converted into dormitories. Then, as quickly as arrangements could be made, they were farmed out — like refugees from some bombed city in an ancient war — to any households that were able
to cope with them. At this stage, there were still many willing volunteers, among them Colin and Sheela Makenzie.
The apartment was lonely, now that Duncan's pseudosibling Glynn had left home to work on the other
side of Titan; Sheela's other child, Yuri, had been gone for a decade. Though Number 402, Second Level, Meridian Park was hardly spacious by Terran standards, Assistant Administrator Colin Makenzie, as he
was then, had selected one of the homeless waifs for temporary adoption.