Shepherd nodded. "There"s a lot of upper atmosphere turbulence over us at the moment, and that"s limiting drastically what the computer has to work with."
"I"d say it"s a herd or flock of some sort," Jonny said. "I gather it"s headed this way?"
"Hard to tell-they"re still a hundred kilometers away-but it looks right now like the flank will sweep across us," Shepherd said. He touched a switch and the infrared picture on one of the other screens was replaced by a schematic. The various extrapolation regions were done in different colors; and, sure enough, the edge of the red "90% probable" wedge just touched the Menssana"s indicated position. The ma.s.s"s average distance and speed were also given: 106 km, 8.1 km/hr.
"So we"ve got thirteen hours till they get here," Jonny murmured. "Well... we can break camp in one if necessary, but the scientists won"t like all their in situ stuff being moved. I suppose the logical thing would be to send a squad of
Cobras to check out this herd and see if they can be stopped or deflected."
"Yes, sir, that"s what we thought." Banyon hesitated, and Jonny saw on his face the same expression that, on his sons, had usually signaled a favor request was coming. "Uh, Governor... would you be willing to fly out with the team? We"d all feel better with someone of your experience along."
Jonny looked back at Chrys, raised his eyebrows. She was still studying the displays, though, and when she finally met his gaze she seemed surprised he was even asking. "Of course," she said. "Just be careful."
If I live to be ten thousand.... Turning back to Banyon, he nodded. "All right, then. Let"s get cracking."
It was indeed a herd-a big herd-and to Jonny, who"d seen such things only on tape, the sight of so many wild animals together at once was both awesome and a little bit frightening. Even just jogging along, the ma.s.s of brown-furred quadrupeds made a thunder audible inside a sealed aircar two hundred meters overhead, and their wide hooves raised a dust cloud despite the damping effect of the webgra.s.s underfoot.
"I think," Banyon commented as they all took in the sight, "we"re going to have to rethink our basic plan."
One of the other Cobras snorted, and someone else let loose with a rather strained chuckle. Jonny let the tension-easing noises ripple around the crowded aircar and then gestured out the window. "Let"s get a few kilometers ahead of them and see if we can come up with a way to shift them off their course."
Banyon nodded and turned the vehicle around, but as the roar faded behind them
Jonny studied the landscape below with decreasing hope. The Cobras had already established that there weren"t any natural obstacles between the herd and the
Menssana, and now that he knew what they were up against it seemed very unlikely they could do anything to the terrain that would make any difference whatsoever.
Something more drastic was likely to be necessary. Drastic and dangerous.
Banyon had apparently reached the same conclusion. "We"re going to have to scare them, I"m afraid," he murmured, just loudly enough for Jonny to hear.
"There used to be herds this size all over parts of Earth and Blue Haven," Jonny said. "I wish I knew how they"d been hunted. Well. We don"t have anything like real explosives aboard, and we don"t yet know what this species" predators even look like. I suppose that leaves close-in work with lasers and sonics."
"Laser range isn"t that short-oh. Right. If they don"t see us, there"s no guarantee they"ll figure out which way to run."
"Or even notice they"re being killed off." Jonny thought for a minute, but nothing else obvious came to mind. "Well... let"s try buzzing them with the car first. Maybe that"ll do the trick."
But the animals apparently had no enemies that were airborne. Completely oblivious to the darting craft above them, they continued stolidly on their way.
"We do it the hard way now?" one of the others asked.
Banyon nodded. "Afraid so. But hopefully not too hard. Saving the biologists some work isn"t worth anyone getting killed over."
"Or even hurt," Jonny put in. "We"ll just-"
A ping from the car"s phone interrupted him. "Governor, we"ve got something here that may or may not mean anything," Captain Shepherd said, his attention somewhere off-camera. "The satellite"s been completing its large-scale geosurvey... and it looks very much like that herd is running along one of the planet"s magnetic field lines."
Banyon looked at Jonny, eyebrows raised. "I thought the only things that used geomagnetic navigation were birds, insects, and tweenies."
"So did all the Menssana"s biologists," Shepherd returned dryly. "But they admit there"s no reason something larger couldn"t make use of the mechanism."
"If we a.s.sume they"re indeed paralleling the field lines, is the camp still in danger?" Jonny asked.
"Yes. The probability actually goes up a couple of points."
Jonny looked questioningly at Banyon. "Worth a try," the other grunted.
"Captain, is there anything aboard the ship that can generate a strong magnetic field?"
"Sure-the drive modulators. All we"ll need to do is pull off some of the shielding and we"ll get enough field leakage to overwhelm their direction finders. If that"s what"s really happening."
"It"s worth trying," Banyon repeated. "How fast can you get that shielding off?"
"It"s already being done. Say another hour at the most."
The gently rolling terrain could not by any stretch of the imagination be called hilly; but even so the flatfoot herd was audible long before it could be seen.
Standing a few meters back from the main line of Cobras, Jonny wiped the perspiration off his palms as the thunder steadily grew, hoping this was going to work. In theory, the Cobra"s antiarmor lasers should be able to make fungus feed out of the herd if something went wrong... but Jonny couldn"t help remembering how hard the equally herbivorous gantuas of Aventine were to kill.
"Get ready," his phone said. He glanced up to see the car as it hovered above and ahead of the Cobras. "You"ll see them any minute now. Wait for the captain"s signal...."
And the leading edge of the herd came over a low rise, like a dark tsunami clearing a breakwater.
They weren"t heading directly toward the Cobras, and in actual size were quite a bit smaller than gantuas, but the sheer numbers and ground-level view more than made up for it. Jonny clenched his jaw firmly, fighting hard against the urge to turn and run for cover... and as the wave poured over the rise a new voice on the phone barked, "Now!"
The answer was a volley of Cobra antiarmor lasers-directed not at the flatfoots, but at the cl.u.s.ters of boulders the Cobras had wrestled into position fifty meters closer to the herd. Very special boulders... and if the Menssana"s geologists had been right about that particular formation-
They had. The mix of high- and low-expansion minerals in each boulder could survive for only a second or less under a laser"s glare before disintegrating with a crack that was audible even over the herd"s rumble. Like a string of firecrackers the boulders blew up as the Cobras continued their sweep... and like firecrackers, they actually produced little more than noise. But it was enough; and as the herd"s headlong rush faltered in sudden confusion, Jonny could almost see them lose their internal sense of direction. An instant later the hesitation was gone and the herd had doubled its speed to a flat-out run... but in the slightly altered direction the Menssana"s additional magnetic field was defining for them from the ship"s new position some ten kilometers away. The flank of the herd would now miss the line of Cobras; and when the Menssana lifted in an hour or so and the flatfoots resumed their original direction their path would be shifted at least a kilometer out of the way of the human encampment.
Theoretically. But there would be time to make sure.
The aircar was dropping toward the ground and the Cobras were beginning to converge on it. "Good job," Banyon"s voice came from Jonny"s phone. "Let"s head back."
The last few clouds had cleared shortly before sunset, and the night sky was alive with stars. Walking hand in hand just inside the perimeter, Jonny and
Chrys took turns naming the recognizable constellations and trying to match the more distorted ones with their Aventinian counterparts. Eventually, they ran out, and for a time they just walked in silence, enjoying the night air. Jonny, his audio enhancers activated, heard the faint roar before Chrys did; and by the time she took notice the steady volume level showed their plan had succeeded.
"The flatfoot herd?" she asked, peering off into the darkness.
"Right," he nodded. "And they"re not getting any closer. At least a kilometer away-maybe two."
She shook her head. "Strange. I remember some biology cla.s.s in school where the instructor took it upon himself to "prove" that no land animal larger than a condorine could ever evolve with a magnetic sense unless there was some ridiculously high local field present. I wish he was here to see this."
Jonny chuckled. "I remember reading about the old theory that all the native plants and animals on the various Dominion worlds were mutated descendents of spores or bacteria that had ultimately been blown there by solar winds from
Earth. The argument was still going strong when the Trofts and Minthisti were found, I understand, and I have no idea what its proponents made of Aventine. If there are still any of them around. I guess the possibility of making a public fool of yourself is just one of those risks scientists have to face."
"You know, that universal genetic code thing has always bothered me, too," Chrys mused. "Why should all the life we find show the same DNA and protein forms? It doesn"t seem reasonable."