Lightspeed: Year One

Again Mia took Esefeb’s hand and pulled her toward the door. This time Esefeb went with her. As they set off toward the city, the girl’s legs wobbled. Some parasite that had become active overnight in the leg muscles? Whatever the trouble was, Esefeb blithely ignored it as they traveled, much more slowly than yesterday, to Kenin’s makeshift lab in the ruined city. Along the way, Esefeb stopped to watch, laugh at, or talk to three different things that weren’t there.

“She’s beautiful, under all that neglect,” Lolimel said, staring down at the anesthetized girl on Kenin’s neuroimaging slab.

Kenin said mildly, “If the mutated virus is transmitted to a fetus, it could also be transmitted sexually.”

The young man said hotly, “I wasn’t implying—”

Mia said, “Oh, calm down. Lolimel. We’ve all done it, on numerous worlds.”

“Regs say—”

“Regs don’t always matter three hundred light years from anywhere else,” Kenin said, exchanging an amused glance with Mia. “Mia, let’s start.”

The girl’s limp body slid into the neuro-imager. Esefeb hadn’t objected to meeting the other medicians, to a minimal washing, to the sedative patch Mia had put on her arm. Thirty seconds later she slumped to the floor. By the time she came to, an incision ten cells thick would have been made into her brain and a sample removed. She would have been harvested, imaged, electroscanned, and mapped. She would never know it; there wouldn’t even be a headache.

Three hours later Esefeb sat on the ground with two of the guards, eating soysynth as if it were ambrosia. Mia, Kenin, Lolimel, and the three other medicians sat in a circle twenty yards away, staring at handhelds and analyzing results. It was late afternoon. Long shadows slanted across the gold-green grass, and a small breeze brought the sweet, heavy scent of some native flower.

Paradise, Mia thought. And then: Bonnet Syndrome.

She said it aloud, “Charles Bonnet Syndrome,” and five people raised their heads to stare at her, returned to their handhelds, and called up medical deebees.

“I think you’re right,” Kenin said slowly. “I never even heard of it before. Or if I did, I don’t remember.”

“That’s because nobody gets it anymore,” Mia said. “It was usually old people whose eye problems weren’t corrected. Now we routinely correct eye problems.”

Kenin frowned. “But that’s not all that’s going on with Esefeb.”

No, but it was one thing, and why couldn’t Kenin give her credit for thinking of it? The next moment she was ashamed of her petty pique. It was just fatigue, sleeping on that hard cold floor in Esefeb’s home. Esefeb efef. Mia concentrated on Charles Bonnet syndrome.

Patients with the syndrome, which was discovered in the eighteenth century, had damage somewhere in their optic pathway or brain. It could be lesions, macular degeneration, glaucoma, diabetic retinopathy, or even cataracts. Partially blind, people saw and sometimes heard instead things that weren’t there, often with startling clarity and realism. Feedback pathways in the brain were two-way information avenues. Visual data, memory, and imagination constantly flowed to and from each other, interacting so vividly that, for example, even a small child could visualize a cat in the absence of any actual cats. But in Bonnet syndrome, there was interruption of the baseline visual data about what was and was not real. So all imaginings and hallucinations were just as real as the ground beneath one’s feet.

“Look at the amygdala,” medician Berutha said. “Oh merciful gods!”

Both of Esefeb’s amygdalae were enlarged and deformed. The amygdalae, two almond-shaped structures behind the ears, specialized in recognizing the emotional significance of events in the external world. They weren’t involved in Charles Bonnet syndrome. Clearly, they were here.

Kenin said, “I think what’s happening here is a strengthening or alteration of some neural pathways at the extreme expense of others. Esefeb ‘sees’ her hallucinations, and she experiences them as just as ‘real’—maybe more real—than anything else in her world. And the pathways go down to the limbic, where seizures give some of them an intense emotional significance. Like . . . like orgasm, maybe.”

Ej-es.

“Phantoms in the brain,” Berutha said.

“A viral god,” Lolimel said, surprising Mia. His tone, almost reverential, suddenly irritated her.

“A god responsible for this people’s degradation, Lolimel. They’re so absorbed in their ‘phantoms’ that they don’t concentrate on the most basic care of themselves. Nor on building, farming, art, innovation . . . nothing. They’re prisoners of their pretty fantasies.”

Lolimel nodded reluctantly. “Yes, I see that.”

Berutha said to Kenin, “We need to find the secondary virus. Because if it is infectious through any other vector besides fetal or sexual . . . ” He didn’t finish the thought.