The other two processors reach some equally interesting probabilistic conclusions. Mostly based upon the data taken during the endangered species roundup seven cycles earlier, two separate types of animals, one land-based and one water-based, are identified as the only possible candidates for the evolutionary burst that produced spacefarers in such a short time. Actually, according to the computer, if the land-based human beings survived their earlier nadir (around the time when some specimens were removed by the zoo ships of the Colony) and did not become extinct, they had by far the better chance of becoming the space voyager, especially in view of the results of the experiments conducted on them at the Zoo Complex. But if, indeed, the descendants of those bipedal, upright, aggressive creatures have become spacefarers, the processor warns, then the chances for survival to maturity by the zygotes in the cradle are extremely low. Unless somehow significant design changes in the cradle can be made on the spot or the development of the repatriates can be kept a secret from the humans for as long as a millicycle.
More worrisome for the extraterrestrial spaceship from the point of view of the overall mission is the tentative conclusion that it may well be discovered by the intelligent and potentially hostile inhabitants of the target planet in a comparatively short period of time. If discovered and seriously threatened, the spaceship could depart from the planet quickly and search for another haven to make repairs; however, traveling in the space environment in its current damaged state would be very risky. Another option would be for the spacecraft to send its own robots to the mines on this planet to extract the lead and gold that would virtually guarantee safe arrival at the next target, where the heavy metals are plentiful.
In either case, premature discovery by uncooperative Earthlings would almost certainly doom the zygote cradle that would be left on the Earth, if it is known that the cradle system came from the alien spacecraft. Thus the first action that the spaceship takes is to check out, deploy, and then hide the Earth cradle away from the vehicle. The carpets locate a sequestered spot six or seven hundred yards away on the nearby ocean floor and the platforms move the gold metallic cradle into that place under a rock overhang.
To reduce the probability of being discovered, the spaceship changes its outer surface to match the ocean floor around it. After a complex set of analyses of its entire decision matrix, the central computer concludes that the maximum likelihood of success path for the overall mission involves trying to enlist either the whales or the human beings to supply the extra lead and gold, as well as the new information to be transmitted to the cradle. So the spacecraft implements those repairs that are straightforward, puts itself into a standby for launch mode, and begins the task of communicating with the Earthlings.
The data taken by the Zoo explorers seven cycles ago (about a hundred thousand Earth years) suggested that the whales and human beings, at that time, had approximately the same potential for intelligence. The whale language was richer and more complicated at the time of this earlier investigation. The Zoo explorers studied it briefly and recorded in the archives its fundamental tenets. based upon that old data, while at the same time trying to develop a scenario for communicating with the humans, the spaceship attempts to make contact with the whales. Because the whales have not substantially changed in the intervening time, the attempts are partially successful; the whales understand that they are being called, but they are mostly confused by the messages and unable to figure out how to respond.
Two small pods of whales do, however, decipher the message transmitted in the ocean by the alien ship and swim toward its source. The robots in the extraterrestrial spacecraft examine the whales carefully, even showing the captive missile to one of the pods to elicit recognition, and conclude absolutely that the whales cannot be the spacefarers. Therefore it is the human beings who have made the great evolutionary strides and must be contacted and somehow induced to provide the lead and the gold and the requisite information. Further attempts to communicate with the whales are abandoned.
Before the alien ship has determined the method it will use to contact humanity, chance provides it with an excellent opportunity. During the final interactions with the whales, three human beings are swimming in the neighborhood. By incredible luck, these three find the deployed cradle and take it to the land. As a cautionary move, the spaceship computer commands temporary changes inside the cradle to ensure its protection and to provide for more frequent status monitoring; however, there is no major concern yet. The humans do not recognize the connection between the cradle and the spacecraft. In addition, with the zygotes in their early stages of pullulation, the cradle has an extremely robust design. Having the cradle in the possession of humans at this time can also be viewed as an advantage for the superaliens; receivers in the cradle can be commanded to listen to the conversations and then telemeter to the mother spacecraft information that will permit learning the rudiments of the human language.
The logical processes in the extraterrestrial computers are strained to the limit to figure out a way to contact human beings for help without creating undue risk for both the Earth cradle and the rest of the mission. The computers are about to decide on a rapid strike at mines for the lead and gold when they realize, based on their partial understanding of the human language, that the three humans who found the cradle may be coming back into the vicinity. All of the spaceship processors are strapped together to design a scenario that will induce these humans to help them. The inside of the spaceship is even reconfigured from scratch for the arrival of the humans. For if the scenario is successful, there is a high probability that the spaceship can continue on its mission, having successfully deposited the millions of repatriated zygotes, but without having disrupted the main flow of life on Earth. This was the original goal of the mission.
SUNDAY
1
It was after two o’clock in the morning by the time the Florida Queen left the marina and headed out into the Gulf of Mexico. Carol and Troy stood together against the railing while Nick steered the boat through the harbor. “Well, angel,” Troy said, “it has already been an unbelievable experience, hasn’t it? And I must admit that I myself am a little nervous about what we’re going to find out at the dive site this time.”
“I thought you knew what was going to happen, Troy,” Carol replied, pointing at his bracelet. “Don’t they tell you everything?”
“They tell me a lot. And I’m getting better at understanding their messages. But how do I know if they’re telling the truth?”
“We have had the same problem with you at times,” Nick interjected from under the canopy. The boat was almost out in the open ocean. The lights from Key West were receding behind them. “In the final analysis, particularly when nothing makes sense anyway, it comes down to a question of trust. If I were to ask myself logically why I am going out into the Gulf of Mexico in the middle of the night to take lead and gold and information to some extraterrestrials who stopped here on the Earth to make repairs—”