The land before her flickered once, then lit up in fairyland colors. Light! Pale oceans of light overlaying light, shifting between pastels, from faded rose to boreal blue, multilayered, labyrinthine, and all pulsing gently within the heart of the sulfur rock. It looked like thought made visual. It looked like something straight out of DisneyVirtual, and not one of the nature channels either – definitely DV-3.
“Damn,” she muttered. Right under her nose. She’d had no idea.
Glowing lines veined the warping wings of subterranean electromagnetic forces. Almost like circuit wires. They crisscrossed the plains in all directions, combining and then converging not upon her but in a nexus at the sled. Burton’s corpse was lit up like neon. Her head, packed in sulfur dioxide snow, strobed and stuttered with light so rapidly that it shone like the sun.
Sulfur was triboelectric. Which meant that it built up a charge when rubbed.
She’d been dragging Burton’s sledge over the sulfur surface of Io for how many hours? You could build up a hell of a charge that way.
So okay. There was a physical mechanism for what she was seeing. Assuming that Io really
Lesser, smaller, and dimmer ‘circuitry’ reached for Martha as well. She looked down at her feet. When she lifted one from the surface, the contact was broken, and the lines of force collapsed. Other lines were born when she put her foot down again. Whatever slight contact might be made was being constantly broken. Whereas Burton’s sledge was in constant contact with the sulfur surface of Io. That hole in Burton’s skull would be a highway straight into her brain. And she’d packed it in solid SO2 as well. Conductive
She shifted back to augmented real-color. The DV-3 SFX faded away.
Accepting as a tentative hypothesis that the voice was a real rather than a psychological phenomenon. That Io was able to communicate with her. That it was a machine. That it had been built…
Who, then, had built it?
“Io? Are you listening?”
“Calm on the listening ear of night. Come Heaven’s melodious strains. Edmund Hamilton Sears.”
“Yeah, wonderful, great. Listen, there’s something I’d kinda like to know—who built you?”
“You. Did.”
Slyly, Martha said, “So I’m your creator, right?”
“Yes.”
“What do I look like when I’m at home?”
“Whatever. You wish. To.”
“Do I breathe oxygen? Methane? Do I have antennae? Tentacles? Wings? How many legs do I have? How many eyes? How many heads?”
“If. You wish. As many as. You wish.”
“How many of me are there?”
“One.” A pause. “Now.”
“I was here before, right? People like me. Mobile intelligent life forms. And I left. How long have I been gone?”
Silence. “How long—” she began again.
“Long time. Lonely. So very. Long time.”
Trudge, drag. Trudge, drag. Trudge, drag. How many centuries had she been walking? Felt like a lot. It was night again. Her arms felt like they were going to fall out of their sockets.
Really, she ought to leave Burton behind. She’d never said anything to make Martha think she cared one way or the other where her body wound up. Probably would’ve thought a burial on Io was pretty damn nifty. But Martha wasn’t doing this for her. She was doing it for herself. To prove that she wasn’t entirely selfish. That she did, too, have feelings for others. That she was motivated by more than just the desire for fame and glory.
Which, of course, was a sign of selfishness in itself. The desire to be known as selfless. It was hopeless. You could nail yourself to a fucking cross and it would still be proof of your innate selfishness.
“You still there, Io?”
“Am. Listening.”
“Tell me about this fine control of yours. How much do you have? Can you bring me to the lander faster than I’m going now? Can you bring the lander to me? Can you return me to the orbiter? Can you provide me with more oxygen?”
“Dead egg, I lie. Whole. On a whole world I cannot touch. Plath.”
“You’re not much use, then, are you?”
There was no answer. Not that she had expected one. Or needed it, either. She checked the topos and found herself another eighth-mile closer to the lander. She could even see it now under her helmet photomultipliers, a dim glint upon the horizon. Wonderful things, photomultipliers. The sun here provided about as much light as a full moon did back on Earth. Jupiter by itself provided even less. Yet crank up the magnification, and she could see the airlock awaiting the grateful touch of her gloved hand.
Trudge, drag, trudge. Martha ran and reran and rereran the math in her head. She had only three miles to go, and enough oxygen for as many hours. The lander had its own air supply. She was going to make it.