In the plaza area, not more than forty meters from the octahedron, the avian swooped down on an utterly unobtrusive portion of the metallic ground. It tapped its talons several times and then hovered over the spot. A covering of some kind slid away and the creature disappeared under the plaza. Twice it flew out, said something in Nicole’s direction, and then descended,

Nicole understood the message. I think I’m being invited home to meet the family, she said to herself. Let’s just hope that I’m not the dinner.

Nicole had no idea what to expect. — She was not fearful as she walked over and gazed at the hole in the ground. Curiosity was her dominant feel­ing. She worried momentarily that her rescue team might arrive while she was under the ground, but Nicole convinced herself that they would return later.

The rectangular cover was large, about ten meters long and six meters wide. When the avian saw that Nicole was following, it flew into the hole and waited on the third ledge. Nicole squatted beside the opening and stared into the depths. She could see some lights close by and more were flickering in the distance below her. She could not estimate accurately to what depth the corridor descended, but it was obviously more than twenty or thirty meters.

The downward climb was not easy for a nonflying species. The vertical corridor was essentially a large hole with a series of broad ledges along its sides. Each of the ledges was exactly the same size, about five meters long and one meter wide, and they were separated one from another by about two meters in depth. Nicole had to be very careful.

What light there was in the vertical corridor came from the opening to the plaza and some lanterns hanging on the walls every four ledges along the descent. The lanterns were enclosed in transparent wrappings that were very flimsy and paperlike. Each lantern contained a small, burning fire, together with some liquid substance that Nicole assumed was the fuel.

Nicole’s velvet-bodied friend watched her patiently throughout the de­scent, always staying three ledges below her. Nicole had the feeling that if she were to slip, the avian would catch her in midair, but she didn’t want to test her hypothesis. Her mind was running at a rapid pace. Nicole had already decided that the creatures were definitely not biots. That meant they were an alien species of some kind. But they couldn’t possibly be the Ramans, Nicole reasoned. Their level of technological development is totally inconsis­tent with this incredible spacecraft.

Nicole remembered from her history courses the poor and backward Mayans found in Mexico by the conquistadors. The Spanish had deemed it impossible that the ancestors of those ignorant and impoverished people could possibly have built such impressive ceremonial centers. Could that have happened here? Nicole wondered. Might these strange avians be all that is left of the master species that constructed this vehicle!’

About twenty meters below the surface Nicole heard what sounded like running water. The noise increased as she dropped onto a ledge that was actually an extension of a horizontal tunnel heading off behind her. Across the vertical corridor Nicole could see a similar dark hallway going in the opposite direction, also parallel to the surface.

Her avian guide was, as usual, three ledges below. Nicole pointed down the tunnel at her rear. The creature flew up close to her and systematically hovered over each of the two ledges immediately below Nicole, making it perfectly clear that Nicole was expected to descend.

Nicole was not willing to give up so easily. She took out her flask and made a drinking motion. Then Nicole pointed behind her at the dark tunnel. The avian fluttered about, apparently weighing the decision, and then flew over Nicole’s head into the blackness. Forty seconds later Nicole saw a light in the distance that continued to grow as it approached her. The avian returned carrying a large torch in one of its talons.

Nicole followed the avian for about fifteen meters. They came to a room, off to the left of the tunnel, that contained a large cistern full of water. Fresh water fell into the cistern from a pipe embedded in the wall. Nicole pulled out her mass spectrometer and tested the liquid. It was virtually pure H2 O; no other chemicals were present above one part in a million. Careful to remember her manners, Nicole cupped her hands and drank from the water­fall. It was unbelievably delicious.

After she had finished drinking, Nicole continued to walk down the tun­nel in the same direction. The avian went into a frenzy, flying up and down and jabbering incessantly, until Nicole reversed her direction and returned to the main vertical corridor. When she renewed her descent, she noticed that the ambient light level had dropped considerably. Nicole glanced above her. The opening to the plaza in New York was now closed. I hope that doesn’t mean I’m here for good, she thought.

Twenty meters more below the surface, another pair of dark horizontal tunnels ran perpendicular to the main corridor. At this second level the velvet avian, still carrying the torch, led Nicole down one of the horizontal tunnels for about two hundred meters. She followed the bird into a large, circular room with a high ceiling. The avian used its torch to light several wall lanterns around the room. Then it disappeared. It was gone for almost an hour. Nicole sat as patiently as she could, at first staring around the black room that reminded her of a cave or grotto. There were no decorations. At length Nicole began to concentrate on how she would inform the avians that she was ready to leave.

When her velvet friend eventually returned, it brought four associates. Nicole heard them flapping their wings in the hallway and jabbering inter­mittently. Her avian’s companion (who Nicole assumed was a mate of some kind) and two additional linoleum-surfaced creatures flew in first. They landed and then awkwardly walked up very close to Nicole to conduct a visual examination. After they had sat down on the opposite side of the room, another velvet-bodied creature, this one brown instead of black, flew in last. It was carrying a small manna melon in its talons.

The melon was placed in front of Nicole. All of the avians watched expec­tantly. Nicole neatly cut a one-eighth section out of the melon with her scalpel, picked it up to drink a small draught from the greenish liquid in the middle, and then carried the remaining melon over to her hosts. They shrieked appreciatively, admiring the precision of the cut as they passed the melon among themselves.

Nicole watched the avians eat. They shared the melon, one with another, and at no time were any portions meted out. The two velvet avians were surprisingly deft and dainty with their talons, making as little mess as possi­ble and leaving no waste whatsoever. The larger avians were much clumsier; their eating reminded Nicole of animals on Earth. Like Nicole, none of the avians ate the tough outer covering of the manna melon.

When the meal was over the avians, who had not talked at all while they were eating, huddled in a circle for several seconds. The huddle broke up after the brown velvet one jabbered something that sounded to Nicole like a song. One at a time, they then flew over for another close-up look at her and disappeared out the door.

Nicole sat quietly and wondered what would happen next. The avians had left the lights on in the dining room (or banquet hall, or whatever it was), but it was pitch black in the corridor outside. They clearly intended for her to stay where she was, at least for the time being. It had been a long time since Nicole had had any sleep and she was pleasantly full from the meal. Oh well, she thought to herself, curling up on the floor after a short internal debate, maybe a short nap will refresh me.