file:///F|/rah/Philip%20Jose%20Farmer/Farmer,%20Philip%20Jose%20-%20Time's%20Last%20Gift.txt
our best to thank Time and Mankind for this great gift.'
The others looked disappointed. Evidently they thought that, if they had been given the
chance, they could have uttered more notable words.
Gribardsun went back into the vessel and unlocked a box of weapons. Rachel followed him
and removed clothes of some light but very warm material which retained body heat very
effectively. Armed and weaponed, and two equipped with cameras the shape and size of American
footballs, they moved out. The port had been closed, but the camera on top of the vessel tracked
them. They began the steep climb with the Englishman at their head. They were in excellent
physical condition, but all except Gribardsun were puffing and red-faced by the time they reached
the top.
Gribardsun turned and looked back down. The vessel was small. But it weighed three hundred
tons, and it had to be moved back up to the physical point where it had emerged from Time.
Otherwise, when the time came to be pulled back to A.D. 2074, the vessel would remain in 12,000
B.C. And so would its crew. The mechanics of time-travel devices required that the vessel, and its
original mass within plus or minus ten ounces, be in the exact landing place.
Gribardsun drove a number of sharp plastic spikes into the ground to mark the outlines of
the depression formed where the vessel had fallen. Four years from now, the depression might be
smoothed out, and thus it would be impossible to locate.
Rachel and von Billmann took films of the spot, and then Gribardsun and Drummond
Silverstein took the coordinates of the depression from three large rocks sticking out of the soil
nearby.
The H. G. Wells I had been set on a wooden platform on top of a hill before being
chronologically launched. The edge of the hill in the Vezere River valley, France, A.D. 2070, was
forty feet away from the vessel. It had been expected that the edge of the hill in 12,000 B.C.
would be even more distant. The geologists had affirmed this to be a fact. Gribardsun wondered if
they had been correct but a slight displacement in space had occurred. The theoreticians said that
this would not occur, but the truth was that they did not know what would happen in practice.
The process of time travel required an enormous amount of energy. The further back into
time the machine went, the more the energy. This period was as far back as a machine could be
sent. There was a factor, which only a few mathematicians understood, which required that the most
expensive and most dangerous journey be made first. If the time travelers waited, say, eight years
more before attempting to go into the Magdalenian, they would find themselves in circa 8000 B.C.
The era of 12,000 B.C. would be forever out of reach. And if they waited for ten years, they would
find that 4000 B.C. was as far back as they could go.
Moreover, there was a strange and unexplained limit at the other end. The first small
experimental manless model had been sent back one day into time. But it had never arrived, as they
knew it would not, having been present the day before. Where the model went was not known. Then
another model, at great expense of materials and energy, was sent back a week. This did not
appear, as the experimenters knew it would not. But they had to be sure.
At this time, the news media learned about Project Chronos, and it was suspended for a
while until the public, and Congress, were satisfied that it was safe. The old science-fiction
idea that tampering with time would change the course of events had to be dealt with. Stories by
various writers from Wells to Silverberg and Bradbury and Heinlein, illustrating the paradox and
danger of time travel, were reprinted and even dramatized. Millions of people were fearful that
time travel would result in one of their ancestors being killed, and so their descendants would
vanish from the face of Earth, as if the boojum were prowling it.
Jacob Moishe, leader of the project team that had invented the time-travel machines,
quieted this form of protest. He showed, in a series of articles, that if time travel was going to
make any changes, it had already done so, and therefore there was nothing to fear. By then the
original goal of circa 25,000 B.C. was lost forever. Too much time had elapsed. The expedition
would have to settle for the middle Magdalenian. The funds were restored, and a small model was
sent back to one hundred years, and a search was made for it. The theory was that it had appeared
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