“If we can get home. That’s another thing. There may be a way. As we were coming back, Liddy and I saw something that we feel sure wasn’t there when we left the sea to take a look ashore.”

As Bony stripped off his suit he described the rainbow-hued arc. It was difficult to find words for something so unfamiliar, the partial circle with its darker and poorly defined extension under the water.

“When we saw it,” he said, “I couldn’t think what it might be. But as I sat puffing and panting on the lock hatch, I had an idea. The thing looks like a circle, but actually it must be a spherical region. I believe that it’s a Link access point — the same one we came through to get here.”

“Nonsense.” Friday Indigo glared at Bony. “You can’t possibly have a Link access point in water.”

“We’ve never seen one before, I know that. But we did get here somehow, and we have no other candidates. If this is one, it isn’t open always. It wasn’t there earlier today. But if it’s a Link access point and we can get the Mood into the right place at the right time, we can go home.”

“Go home?!” Indigo was infuriated. “You talk of going home — when we haven’t done a single thing that we came here to do. I want to find out all about this planet! I want to know everything here that’s valuable! You saw just a tiny bit, as much as you could walk to in a couple of hours, and already you talk of leaving! Well, forget that idea. It’s too late tonight, but tomorrow when it’s light we’ll head outside again and make another trip to land. This time we’ll be better organized, and we’ll take plenty of instruments. And before we’re done with this damned place, I’ll know it inside out. I’m going to find that flying vehicle you saw. I’m going to take a close-up look at it. Maybe I’ll even take it back with me.” Indigo was stamping up and down the cabin. “Rombelle, you’re a fool. You just don’t get it. This place, Limbo or whatever you want to call it, is opportunity .”

Bony stared at the captain. It was the recklessness of ignorance, the confidence of a man who had always been able to buy himself out of trouble. How did you persuade a rich idiot like Friday Indigo that the biggest opportunity a new world offered was often the chance to be killed in unpleasant ways?

“It’s not just the land area,” Liddy said quietly, before Bony could find a tactful way of phrasing what was on his mind.

It was the first time she had spoken since she and Bony had entered the ship, and Indigo at once made a dismissive gesture of his hand. “Keep out of this. You weren’t brought along on this trip to think, so shut up.”

“I feel sure you’ll want to hear this, Friday.”

“It had better be good, girl, or you’re in real trouble.”

“I don’t know if it’s good or not; but it’s important.” Liddy turned to Bony. “When we left the surface and dived underwater to look for the ship, did you see anything unusual?”

Bony had seen very little. The swirl of blue-green past his visor, a stream of air bubbles from Liddy’s suit. He shook his head.

“Well, I did.” She paused, and this time Friday Indigo waited. “We were diving, but I wasn’t sure where the Mood might be, so I was trying to keep an eye open in all directions. Then I saw a light under the water. For a moment I felt sure that it came from this ship — I mean, what else could it be? — and I was ready to turn in that direction. But it didn’t look right. It wasn’t just a light or two, like our lights shining through the ports. It was more like a column of lights, strung out in a straight line. It seemed like they pointed at something. I followed the line of them with my eye. I saw the lights of the Mood Indigo, and then the ship itself sitting on the seabed. And I turned to head in this direction, and Bony and I came aboard.”

Indigo was silent for a moment, then he said to Bony, “Rombelle, did you see any of this?”

“Nothing.” And, at Friday Indigo’s contemptuous snort, “But I don’t see nearly as well as Liddy, under water or above it.”

“Yeah, yeah,” Indigo said grudgingly. “She’s got great eyesight, I’ll grant you that. But a line of lights, under water? Give me a break.”

Bony turned again to Liddy. “Can you tell us where the thing you saw was, relative to where we are now?”

“I think it was in that direction.” She pointed to one side of the cabin. The three of them went to the port and crowded around it.

“Do you see anything?” Indigo asked. “I don’t.”

“Nor do I.” Bony turned to Liddy. “How about you?”

“Nothing.”

“So you imagined things,” Friday Indigo said. “I warned you not to waste our time. Don’t try thinking, Liddy, it doesn’t suit you. I brought you along for your body, not your brains.”

“Now you wait a minute.” Bony felt his head ready to explode. He was going to hit Indigo unless he could find a distraction. “There might be something there. It’s difficult to see outside when the cabin lights are on. Suppose we turn them off.”

“Suppose we do. We’ll still see nothing.” But Indigo went across to the console, and a moment later the cabin lights dimmed.

“Just as I expected,” Indigo said in the darkness. “Pure imagination. You and your damn lights, Liddy. You didn’t see …” His voice faded.

The sun had set, and its light no longer diffused down from above. The Mood Indigo sat in a silent, stygian gloom. But far away, so faint that one moment it seemed to be there and in the next the eye had lost it, a tiny splinter of light shone wanly through the green water.

“There it is,” Bony said breathlessly. “Liddy, you said you saw a column of lights.”

“That’s what it looked like from above. But they were all pointing in this direction, so from here they line up. I can still make out about a dozen of them, only not so clearly.”

They were silent for a long time, peering into darkness, until Liddy added, “I can’t be sure. But I think they’re moving. Yes, they are.”

Bony stared until his eyes felt ready to pop out of his skull. It was no good. To him, it was still a single blur of light. Indigo must have been in the same situation, because he said quietly and without skepticism, “Moving how, Liddy?”

“Moving this way. Look, can’t you see that one of them is slightly ahead of the others?”

Liddy must have eyes like an eagle. Bony couldn’t see any such thing. But then, suddenly, he could. The single line of light resolved itself into separate points. He tried to count them, but lost track when he reached ten. The splinter of light had at first been blue-green, now its separate points shone with a yellower glow. And each point was slowly brightening. Was it his imagination, or were they also moving up and down?

“They’re coming this way,” said Liddy. Her voice was calm, but Bony felt her hand take his in the darkness and grip it hard. “I wasn’t sure before, but now I am. They seemed to point toward the ship when I first saw them, because they were moving in single file. And they still are.”

“You’re right.” Indigo sounded anything but calm. “I can see them, too. If they keep up that speed they’ll be here in another few minutes. Thank God I installed weapons on the ship, just in case. Rombelle—”

“We’re under water, sir. Fire weapons in our situation, and we’ll be more likely to blow ourselves up than anything else.”

“Well, we have to do something. If we’re attacked we can’t just sit here.”

“I don’t think we have to worry too much.” Bony offered that reassurance more for Liddy’s benefit than because he believed it. He went on, “Remember, these are sea-creatures. Even if they are intelligent, they won’t know about fire or have the technology to develop explosives or projectile weapons.”

Bony didn’t fully believe what he said. Nor, judging from the grunt from the darkness, did Friday Indigo, but there was a certain perverse pleasure in quoting the other man’s own words back to him.