It's raining. I asked one of the nurses to please raise the blinds in my room so I can watch the storm hammering the windowpane, pelting the glass, smudging my view of the diffident sky. I count off the moments between occasional flashes of lightning and the thunderclaps that follow. Storms number among the very few things remaining in all the world that can actually soothe my nerves. They certainly beat the synthetic opiates I'm given, beat them all the way to hell and back. I haven't ever bothered to tell any of my doctors or the nurses this. I don't know why; it simply hasn't occurred to me to do so. I doubt they'd care, anyway.

I've asked to please not be disturbed for a couple of hours, and I've been promised my request will be honored. That should give me the time I need to finish this.

Dr. Teasdale, I will readily confess that one of the reasons it's taken me so long to reach this point is the fact that words fail. It's an awful cliché, I know, but also a point I cannot stress strongly enough. There are sights and experiences to which the blunt and finite tool of human language are not equal. I know this, though I'm no poet. But I want that caveat understood. This is not what happened aboard Pilgrimage; this is the sky seen through a window blurred by driving rain. It's the best I can manage, and it's the best you'll ever get. I've said all along, if the technology existed to plug in and extract the memories from my brain, I wouldn't deign to call it rape. Most of the people who've spent so much time and energy and money trying to prise from me the truth about the fate of Pilgrimage and its crew, they're only scientists, after all. They have no other aphrodisiac but curiosity. As for the rest, the spooks and politicians, the bureaucrats and corporate shills, those guys are only along for the ride, and I figure most of them know they're in over their heads.

I could make of it a fairy tale. It might begin:

Once upon a time, there was a woman who lived in New York. She was an anthropologist, and shared a tiny apartment in downtown Brooklyn with her lover. And her lover was a woman named Amery Domico, who happened to be a molecular geneticist, exobiologist and also an astronaut. They had a cat and a tank of tropical fish. They'd always wanted a dog, but the apartment was too small. They could have afforded a better place to live, a loft in midtown Manhattan, perhaps, north and east of the flood zone, but the anthropologist was happy enough with Brooklyn, and her lover was usually on the road, anyway. Besides, walking a dog would have been a lot of trouble.

No. That's not working. I've never been much good with irony. And I'm better served by the immediacy of present tense. So, instead:

"Turn around, Merrick," she says. "You've come so far, and there is so little time."

And I do as she tells me. I turn towards the voice, towards the airlock's open inner hatch. There's no sign of Amery, or anyone else, for that matter. The first thing I notice, stepping from the brightly lit airlock, is that the narrow, heptagonal corridor beyond is mostly dark. The second thing I notice is the mist. I know at once that it is mist, not smoke. It fills the hallway from deck to ceiling, and, even with the blue in-floor path lighting, it's hard to see more than a few feet ahead. The mist swirls thickly around me, like Halloween phantoms, and I'm about to ask Amery where it's coming from, what it's doing here, when I notice the walls.

Or, rather, when I notice what's growing on the walls. I'm fairly confident I've never seen anything with precisely that texture before. It half reminds me (but only half) of the rubbery blades and stipes of kelp. It's almost the same color as kelp, too, some shade that's not quite brown, nor green, nor a very dark purple. It glimmers wetly, as though it's sweating, or secreting mucus. I stop and stare, simultaneously alarmed and amazed and revolted. It is revolting, extremely so, this clinging material covering over and obscuring almost everything. I look up and see that it's also growing on the ceiling. In places, long tendrils of it hang down like dripping vines. Dr. Teasdale, I want so badly to describe these things, this waking nightmare, in much greater detail. I want to describe it perfectly. But, as I've said, words fail. For that matter, memory fades. And there's so much more to come.

A few thick drops of the almost colorless mucus drip from the ceiling onto my visor, and I gag reflexively. The sensors in my EVA suit respond by administering a dose of some potent antiemetic. The nausea passes quickly, and I use my left hand to wipe the slime away as best I can.

I follow the corridor, going very slowly because the mist is only getting denser and, as I move farther away from the airlock, I discover that the stuff growing on the walls and ceiling is also sprouting from the deck plates. It's slippery, and squelches beneath my boots. Worse, most of the path lighting is now buried beneath it, and I switch on the magspots built into either side of my helmet. The beams reach only a short distance into the gloom.

"You're almost there," Amery says, Amery or the AI speaking with her stolen voice. "Ten yards ahead, the corridor forks. Take the right fork. It leads directly to the transhab module."

"You want to tell me what's waiting in there?" I ask, neither expecting, nor actually desiring, an answer.

"Nothing is waiting," Amery replies. "But there are many things we would have you see. There's not much time. You should hurry."

And I do try to walk faster, but, despite the suit's exoskeleton and gyros, almost lose my footing on the slick deck. Where the corridor forks, I go right, as instructed. The habitation module is open, the hatch fully dilated, as though I'm expected. Or maybe it's been left open for days or months or years. I linger a moment on the threshold. It's so very dark in there. I call out for Amery. I call out for anyone at all, but this time there's no answer. I try my comms again, and there's not even static. I fully comprehend that in all my life, I have never been so alone as I am at this moment, and, likely, I never will be again. I know, too, with a sudden and unwavering certainty, that Amery Domico is gone from me forever, and that I'm the only human being aboard Pilgrimage.

I take three or four steps into the transhab, but stop when something pale and big around as my forearm slithers lazily across the floor directly in front of me. If there was a head, I didn't see it. Watching as it slides past, I think of pythons, boas, anacondas, though, in truth, it bears only a passing similarity to a snake of any sort.

"You will not be harmed, Merrick," Amery says from a speaker somewhere in the darkness. The voice is almost reassuring. "You must trust that you will not be harmed."

"What was that?" I ask.

"Soon now, you will see," the voice replies. "We have ten million children. Soon, we will have ten million more. We are pleased that you have come to say goodbye."

"They want to know what's happened," I say, breathing too hard, much too fast, gasping despite the suit's ministrations. "At Jupiter, what happened to the ship? Where's the crew? Why is Pilgrimage in orbit around Mars?"

I turn my head to the left, and where there were once bunks, I can only make out a great swelling or clot of the kelp-like growth. Its surface swarms with what I, at first, briefly mistake for insects.

"I didn't come to say goodbye," I whisper. "This is a retrieval mission, Amery. We've come to take you… " and I trail off, unable to complete the sentence, too keenly aware of its irrelevance.

"Merrick, are you beginning to see?"

I look away from the swelling and the crawling things that aren't insects, and take another step into the habitation module.

"No, Amery. I'm not. Help me to see. Please."