There was a tree like a huge bullwhip, its handle planted deep in the earth, its lash sprouting clusters of round leaves where it coiled around the trunk. An animal like a giant Motie stood flat-footed beneath it, staring at Whitbread. There were sharp, raking talons on its two right hands, and tusks showed between its lips. “It was a variant of the Porter type,” said Horvath’s Motie, “but never successfully domesticated. You can see why.”
“These artificial environments are astounding!” Horvath exclaimed. “I’ve never seen better. But why not build part of the zoo in the open? Why make an environment when the real environment is already there?”
“I’m not sure why it was done. But it seems to work out.”
The second floor was a desert of dry sand. The air was dry and balmy, the sky baby blue, darkening to yellow brown at the horizon. Fleshy plants with no thorns grew through the sand. Some were the shape of thick lily pads. Many bore the marks of nibbling teeth. They found the beast that had made the tooth marks, a thing like a nude white beaver with square protruding teeth. It watched them tamely as they passed.
On the third floor it was raining steadily. Lightning flashed, illusory miles away. The humans declined to enter, for they had no rain gear. The Moties were half angry, half apologetic. It had not occurred to them that rain would bother humans; they liked it.
“It’s going to keep happening, too,” Whitbread’s Motie predicted. “We study you, but we don’t know you. You’re missing some of the most interesting plant forms too. Perhaps another day when they have the rain turned off…”
The fourth floor was not wild at all. There were even small round houses on distant illusory hills. Small, umbrella-shaped trees grew red and lavender fruits beneath a flat green disc of foliage. A pair of proto-Moties stood beneath one of these. They were small, round, and pudgy, and their right arms seemed to have shrunk. They looked at the tour group with sad eyes, then one reached up for a lavender fruit. Its left arm was just long enough.
“Another unworkable member of our species,” said Horvath’s Motie. “Extinct now except in life forms preserves.” He seemed to want to hurry them on. They found another pair in a patch of melons—the same breed of melon the humans had eaten for dinner, as Hardy pointed out.
In a wide, grassy field a family of things with hooves and shaggy coats grazed placidly—except for one that stood guard, turning constantly to face the visitors.
A voice behind Whitbread said, “You’re disappointed. Why?”
Whitbread looked back in surprise. “Disappointed? No! It’s fascinating.”
“My mistake,” said Whitbread’s Motie. “I think I’d like a word with Mr. Renner. Care to trail along?”
The party was somewhat spread out. Here there was no chance of getting lost, and they all enjoyed the feel of grass beneath their feet: long, coiled green blades, springier than an ordinary lawn, much like the living carpets in houses of the aristocracy and the wealthier traders.
Renner looked amiably about when he felt eyes on him. “Yes?”
“Mr. Renner, it strikes me that you’re a bit disappointed in our zoo.”
Whitbread winced. Renner frowned. “Yah, and I’ve been trying to figure it out. I shouldn’t feel this way. It’s a whole alien world, all compacted for our benefit. Whitbread, you feel it too?”
Whitbread nodded reluctantly.
“Hah! That’s it. It’s an alien world, all compacted for our benefit, right? How many zoos have you seen on how many worlds?”
Whitbread counted in his head. “Six, including Earth.”
“And they were all like this one, except that the illusion is better. We were expecting something a whole order of magnitude different. It isn’t. It’s just another alien world, except for the intelligent Moties.”
“Makes sense,” said Whitbread’s Motie. Perhaps her voice was a little wistful, and the humans remembered that the Moties had never seen an alien world. “Too bad, though,” the Motie said. “Staley’s having a ball. So are Sally and Dr. Hardy, but they’re professionals.”
But the next floor was a shock.
Dr. Horvath was first out of the elevator. He stopped dead. He was in a city street. “I think we have the wrong door…” He trailed off. For a moment he felt that his mind was going.
The city was deserted. There were a few cars in the streets, but they were wrecks, and some showed signs of fire. Several buildings had collapsed, filling the street with mountains of rubble. A moving mass of black chittered at him and moved away in a swarm, away and into dark holes in a slope of broken masonry, until there were none left.
Horvath’s skin crawled. When an alien hand touched his elbow he jumped and gasped.
“What’s the matter, Doctor? Surely you have animals evolved for cities.”
“No,” said Horvath.
“Rats,” said Sally Fowler. “And there’s a breed of lice that lives only on human beings. But I think that’s all.”
“We have a good many,” said Horvath’s Motie. “Perhaps we can show you a few… though they’re shy.”