Faced with these uncertainties, Elliot considered broadcasting a single word. But none of the words on his list was suitable. His second choice was to broadcast several short messages, in case one was inadvertently ambiguous. He eventually decided on three messages; GO AWAY, NO COME, and BAD HERE; two of these combinations had the virtue of being essentially independent of word order.
By nine o'clock, they had already isolated the specific sound components. But they still had a complicated task ahead. What Elliot needed was a loop, repeating the sounds over and over. The closest they would come was the VCR, which rewound automatically to play its message again. He could hold the six sounds in the 256K memory and play them out, but the timing was critical. For the next hour, they frantically worked at the keyboard, trying to bring the word combinations close enough together to sound - to their ears - correct.
By then it was after ten.
Munro came over with his laser gun. "You think all this
will work?"
Elliot shook his head. "There's no way to know." A dozen objections had come to mind. They had recorded a female voice, but would the gorillas respond to a female? Would they accept voice sounds without accompanying hand signals? Would the message be clear? Would the spacing of the sounds be acceptable? Would the gorillas pay attention at all?
There was no way to know. They would simply have to try. Equally uncertain was the problem of broadcasting. Ross had made a speaker, removing the tiny speaker from the pocket tape recorder and gluing it to an umbrella on a collapsible tripod. This makeshift speaker produced surprisingly loud volume, but reproduction was muffled and unconvincing.
Shortly afterward, they heard the first sighing sounds.
Munro swung the laser gun through the darkness, the red activation light glowing on the electronic pod at the end of the barrel. Through his night goggles he surveyed the foliage.
Once again, the sighing came from all directions; and although he heard the jungle foliage shifting, he saw no movement close to the camp. The monkeys overhead were silent. There was only the soft, ominous sighing. Listening now, Munro was convinced that the sounds represented a language of some form, and - A single gorilla appeared and Kahega fired, his laser beam
streaking arrow-straight through the night. The RFSD chattered and the foliage snapped with bullets. The gorilla ducked silently back into a stand of dense ferns.
Munro and the others quickly took positions along the perimeter, crouching tensely, the infrared night lights casting their shadows on the mesh fence and the jungle beyond.
The sighing continued for several minutes longer, and then slowly faded away, until all was silent again.
"What was that about?" Ross said.
Munro frowned. "They're waiting."
"For what?"
Munro shook his head. He circled the compound, looking at the oilier guards, trying to work it out. Many times he had anticipated the behavior of animals - a wounded leopard in the bush, a cornered buffalo - but this was different. He was forced to admit he didn't know what to expect. Had the single gorilla been a scout to look at their defenses? Or had an attack actually begun, only for some reason to be halted? Was it a maneuver designed to fray nerves? Munro had watched parties of hunting chimpanzees make brief threatening forays toward baboons, to raise the anxiety level of the entire troop before the actual assault, isolating some young animal for killing.
Then he heard the rumble of thunder. Kahega pointed to the sky, shaking his head. That was their answer.
"Damn," Munro said.
At 10:30 a torrential tropical rain poured down on them. Their fragile speaker was immediately soaked and drooping.
The rain shorted the electrical cables and the perimeter fence went dead. The night lights flickered, and two bulbs exploded. The ground turned to mud; visibility was reduced to five yards. And worst of all, the rain splattering the foliage was so noisy they had to shout to each other. The tapes were unfinished; the loudspeaker probably would not work, and certainly would not carry over the rain. The rain would interfere with the lasers and prevent the dispersal of tear gas. Faces in camp were grim.
Five minutes later, the gorillas attacked.
The rain masked their approach; they seemed to burst out of nowhere, striking the fence from three directions simultaneously. From that first moment, Elliot realized the attack would be unlike the others. The gorillas had learned from the earlier assaults, and now were intent on finishing the job.
Primate attack animals, trained for cunning and viciousness: even though that was Elliot's own assessment, he was astonished to see the proof in front of him. The gorillas charged in waves, like disciplined shock troops. Yet he found it more horrifying than an attack by human troops. lb them we are just animals, he thought. An alien species, for which they have no feeling. We are just pests to be eliminated.
These gorillas did not care why human beings were there, or what reasons had brought them to the Congo. They were not killing for food, or defense, or protection of their young.
They were killing because they were trained to kill.
The attack proceeded with stunning swiftness. Within seconds, the gorillas had breached the perimeter and trampled the mesh fence into the mud. Unchecked, they rushed into the compound, grunting and roaring. The driving rain matted their hair, giving them a sleek, menacing appearance in the red night lights. Elliot saw ten or fifteen animals inside the compound, trampling the tents and attacking the people. Azizi was killed immediately, his skull crushed between paddles.
Munro, Kahega, and Ross all fired laser bursts, but in the confusion and poor visibility their effectiveness was limited. The laser beams fragmented in the slashing rain; the tracer bullets hissed and sputtered. One of the RFSDs went haywire, the barrel swinging in wide arcs, bullets spitting out in all directions, while everyone dived into the mud. Several gorillas were killed by the RFSD bursts, clutching their chests in a bizarre mimicry of human death.