There was no wind and the piles of decomposing seaweed were steaming in the sun, as were the deposits of ordure. The mixed aroma, although strong, was not altogether unpleasant. The silkies, decided Grimes, must be vegetarians. He and the three women walked around the little island, being careful where they put their feet. The shape of this flat rock was roughly rectangular, one kilometer by five hundred meters. On the northern face were low cliffs, about ten meters above sea level. On the southern side there was a gradual slope right into the water, a natural ramp by which the silkies could gain access to their rookery.
Grimes said, "It's a pity that we scared them all off."
"What else did you expect?" demanded Shirl. "They must have thought that the boat was something new being used by the fur hunters."
"But we can try to call them back," said Darleen.
She kicked off her shoes, shrugged out of her boiler suit, stepped out of her brief underwear. She waded out into the still water. "It's cold.'" she complained. But she walked on, slowly but steadily. Grimes wondered why she did not swim. Then suddenly she assumed a squatting posture, lowering herself until she was completely submerged. She lost her balance of course and floated, face down, her prominent buttocks well above the surface. From around the region of her head came a flurry of bubbles.
She came up for air, inhaling deeply, and then repeated her original maneuver. Again she came up for air and this time struck out for the shore. She waded out to where Grimes, with Shirl and Seiko, was standing.
"It is no use," she said. "I cannot sing under the water."
"I can," said Seiko. "I am guaranteed to be waterproof at any depth. But what must I sing?"
"It will be a call," Darleen told her. "A sound that will carry a long way, a very long way, under the sea. When we were on Earth we studied many things. We listened to the recordings of the whale songs and tried to understand them and to make the same sort of music ourselves. And it was a whale song that I was trying to sing just now. Its meaning is, put into words, 'Come to me. Come to me.' "
"I suppose that it was Admiral Damien who suggested this course of studies," commented Grimes.
"It was," Darleen admitted. "But he never thought to have taught us to sing under the water."
"What sounds must I make?" asked Seiko.
Darleen started to sing. It was an eerie ululation with an odd rhythm. It was something that one felt rather than merely listened to. There was the impression of loneliness, of hunger for close contact. It was a call, a call that any sentient being, on hearing it, would be bound to answer.
And the call was being answered.
From nowhere, it seemed, the birds—if they were birds—were coming in, squawking discordantly, circling overhead. Grimes didn't like the looks of them—those long, curved, vicious beaks, those wings that looked leathery rather than feathery, those whiplike, spiked tails . . . But Darleen sang on, and was joined by Seiko.
And those blasted flying things were getting lower all the time.
Shirl tore a piece of seaweed from a nearby pile, a broad, fleshy slab. She threw it, spinning lopsidedly, aloft. It hit one of the birds. It staggered off course, splashed clumsily into the sea. It seemed to be injured, fluttering and croaking. At once the entire overhead flock ceased their circling and dived on to their disabled companion in a feeding frenzy. It was not a pretty sight. By the time they had finished, at least half a dozen stripped carcasses were sinking to the bottom and the wings of several more of the creatures did not seem to be in good enough repair to carry them for any great distance.
Darleen stopped singing, although Seiko continued. The New Alician followed Shirl's example and armed herself with a makeshift throwing weapon. The birds, their grisly feast (or the first course of it) over, took to the air again and this time made straight for Grimes and his party. Shirl and Darleen effectively launched their missiles, and again, and again, but this time the predators ignored their fallen companions.
"Stop singing!" barked Grimes to Seiko.
Enchanted by the sound of her own voice she ignored him.
"Stop singing!" Who the hell did she think she was? Madam Butterfly? "Stop singing!"
With his right index finger he made a jab for where he estimated her navel, with its ON/OFF switch, to be under the concealing clothing. It hurt him more than it did her but he did succeed in gaining her attention.
She turned to him and said severely, "That was not necessary, captain."
"It most certainly was, you . . . you animated cuckoo clock!"
"If you say so."
But the flying things had lost interest. They circled the party from the boat one last time and then flapped off to the eastward. One of them, a straggler, voided its bowels. It seemed that it must have made allowance for deflection; the noisome mess came down with a splatter on to Grimes' right shoulder, befouling his gold-braided shoulder-board.
"Don't you have a superstition," asked Shirl sweetly, "that that is a sign of good luck?"
Grimes snarled wordlessly and went back into the boat to find some tissues to clean himself off.
When he rejoined the others Seiko was getting ready to make her submarine solo. She had taken off her clothing and was standing there beside the naked Darleen, in her skillfully applied coat of paint looking far more human than the flesh-and-blood girl; there was no oddness about the joints of her lower limbs, no exaggerated heaviness of the haunches. Tomoko had certainly done a good job on her, even to the coral nipples and the black pubic hair.
The robot removed her dark glasses, handed them to Shirl. Now, with those utterly colorless eyes behind which there was a hint of movement, she did look unhuman—but she was still beautiful.
She said, "It is a pity that I cannot take off the wig, but it is secured by adhesive . . . ."
Grimes wondered what that beautifully elaborate coiffeur would look like when she came out of the water.
She walked down to the verge of the calm sea, Darleen beside her. Her movements were more graceful than those of the New Alician—more graceful but less natural. She waded out, Darleen waded out. Darleen stopped when the water was at shoulder level. Seiko, with her much greater specific gravity, went on going. Before long she had completely vanished.
Had she started to sing yet?
Grimes supposed that she had done so.
He hoped that it would be the silkies who answered the call and not, as on the first trial, some totally unexpected and unpleasant predators. He looked out over the sea, to the weed patches, to the low, dark shapes of the other rocky islets. He saw no signs of life.
Suddenly Darleen called out something. He could not make out the words. He saw her dive from her standing posture, her lower legs and long feet briefly visible above the surface. By his side Shirl hastily stripped then ran out into the sea and also dived from view.
Should he join them?
This would be foolish, especially as he did not know what was happening. Besides, he was not all that good a swimmer. All that he could do was wait.
At last a head reappeared above the surface, then another. Shirl and Darleen swam slowly in until the water was shallow enough for them to find footing, then waded the rest of the way. Grimes went down to meet them.
"What's happening?" he demanded.
"Seiko . . . " gasped Darleen.
"We . . . We've lost Seiko . . . " added Shirl.
Darleen recovered her breath and told her story. She had watched Seiko walking along the smooth rock of the sea bottom, presumably singing as she did so. And then, quite suddenly, she had vanished. Darleen dived then and swam underwater to where she had last seen Seiko. There was a crevasse, not very wide but very, very deep. Shirl joined her and both of them tried to swim down into this fissure. They had glimpsed, in the depths, a pale glimmer that might have been Seiko's body—and then even that had vanished.
"We shall miss her," said Shirl sadly.
Everybody aboard Sister Sue would miss her, thought Grimes. Robot she might be (might have been?) but she was a very real personality. Her father, who had played Pygmalion to her Galatea, would be saddened when he was told of Seiko's passing.
He said, "If we had deep diving equipment we might be able to do something. But we haven't . . . "
He looked out over the calm sea, to where he had last seen Seiko. He saw something break surface and momentarily felt a wild hope. But it was not the lost robot. It was a great, gleaming, golden shape and it was followed by others, golden, rich brown, black, silvery grey. The silkies, called by Seiko's song, were coming back.
"We have company," he said to the girls. "Get ready to talk."